257435640

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:323

約数の個数: 384

約数和(自身を含む): 1075576320

約数和(自身を除く): 818140680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 37, 40, 42, 44, 45, 55, 56, 60, 63, 66, 70, 72, 74, 77, 84, 88, 90, 99, 105, 110, 111, 120, 126, 132, 140, 148, 154, 165, 168, 180, 185, 198, 210, 220, 222, 231, 251, 252, 259, 264, 280, 296, 308, 315, 330, 333, 360, 370, 385, 396, 407, 420, 440, 444, 462, 495, 502, 504, 518, 555, 616, 630, 660, 666, 693, 740, 753, 770, 777, 792, 814, 840, 888, 924, 990, 1004, 1036, 1110, 1155, 1221, 1255, 1260, 1295, 1320, 1332, 1386, 1480, 1506, 1540, 1554, 1628, 1665, 1757, 1848, 1980, 2008, 2035, 2072, 2220, 2259, 2310, 2331, 2442, 2510, 2520, 2590, 2664, 2761, 2772, 2849, 3012, 3080, 3108, 3256, 3330, 3465, 3514, 3663, 3765, 3885, 3960, 4070, 4440, 4518, 4620, 4662, 4884, 5020, 5180, 5271, 5522, 5544, 5698, 6024, 6105, 6216, 6660, 6930, 7028, 7326, 7530, 7770, 8140, 8283, 8547, 8785, 9036, 9240, 9287, 9324, 9768, 10040, 10360, 10542, 11044, 11295, 11396, 11655, 12210, 13320, 13805, 13860, 14056, 14245, 14652, 15060, 15540, 15813, 16280, 16566, 17094, 17570, 18072, 18315, 18574, 18648, 19327, 21084, 22088, 22590, 22792, 23310, 24420, 24849, 25641, 26355, 27610, 27720, 27861, 28490, 29304, 30120, 31080, 31626, 33132, 34188, 35140, 36630, 37148, 38654, 41415, 42168, 42735, 45180, 46435, 46620, 48840, 49698, 51282, 52710, 55220, 55722, 56980, 57981, 63252, 65009, 66264, 68376, 70280, 73260, 74296, 77308, 79065, 82830, 83583, 85470, 90360, 92870, 93240, 96635, 99396, 102157, 102564, 105420, 110440, 111444, 113960, 115962, 124245, 126504, 128205, 130018, 139305, 146520, 154616, 158130, 165660, 167166, 170940, 173943, 185740, 193270, 195027, 198792, 204314, 205128, 210840, 222888, 231924, 248490, 256410, 260036, 278610, 289905, 306471, 316260, 325045, 331320, 334332, 341880, 347886, 371480, 386540, 390054, 408628, 417915, 463848, 496980, 510785, 512820, 520072, 557220, 579810, 585081, 612942, 632520, 650090, 668664, 695772, 715099, 773080, 780108, 817256, 835830, 869715, 919413, 975135, 993960, 1021570, 1025640, 1114440, 1159620, 1170162, 1225884, 1300180, 1391544, 1430198, 1532355, 1560216, 1671660, 1739430, 1838826, 1950270, 2043140, 2145297, 2319240, 2340324, 2451768, 2600360, 2860396, 2925405, 3064710, 3343320, 3478860, 3575495, 3677652, 3900540, 4086280, 4290594, 4597065, 4680648, 5720792, 5850810, 6129420, 6435891, 6957720, 7150990, 7355304, 7801080, 8581188, 9194130, 10726485, 11701620, 12258840, 12871782, 14301980, 17162376, 18388260, 21452970, 23403240, 25743564, 28603960, 32179455, 36776520, 42905940, 51487128, 64358910, 85811880, 128717820, 257435640]

約数ペア:

[(1, 257435640), (2, 128717820), (3, 85811880), (4, 64358910), (5, 51487128), (6, 42905940), (7, 36776520), (8, 32179455), (9, 28603960), (10, 25743564), (11, 23403240), (12, 21452970), (14, 18388260), (15, 17162376), (18, 14301980), (20, 12871782), (21, 12258840), (22, 11701620), (24, 10726485), (28, 9194130), (30, 8581188), (33, 7801080), (35, 7355304), (36, 7150990), (37, 6957720), (40, 6435891), (42, 6129420), (44, 5850810), (45, 5720792), (55, 4680648), (56, 4597065), (60, 4290594), (63, 4086280), (66, 3900540), (70, 3677652), (72, 3575495), (74, 3478860), (77, 3343320), (84, 3064710), (88, 2925405), (90, 2860396), (99, 2600360), (105, 2451768), (110, 2340324), (111, 2319240), (120, 2145297), (126, 2043140), (132, 1950270), (140, 1838826), (148, 1739430), (154, 1671660), (165, 1560216), (168, 1532355), (180, 1430198), (185, 1391544), (198, 1300180), (210, 1225884), (220, 1170162), (222, 1159620), (231, 1114440), (251, 1025640), (252, 1021570), (259, 993960), (264, 975135), (280, 919413), (296, 869715), (308, 835830), (315, 817256), (330, 780108), (333, 773080), (360, 715099), (370, 695772), (385, 668664), (396, 650090), (407, 632520), (420, 612942), (440, 585081), (444, 579810), (462, 557220), (495, 520072), (502, 512820), (504, 510785), (518, 496980), (555, 463848), (616, 417915), (630, 408628), (660, 390054), (666, 386540), (693, 371480), (740, 347886), (753, 341880), (770, 334332), (777, 331320), (792, 325045), (814, 316260), (840, 306471), (888, 289905), (924, 278610), (990, 260036), (1004, 256410), (1036, 248490), (1110, 231924), (1155, 222888), (1221, 210840), (1255, 205128), (1260, 204314), (1295, 198792), (1320, 195027), (1332, 193270), (1386, 185740), (1480, 173943), (1506, 170940), (1540, 167166), (1554, 165660), (1628, 158130), (1665, 154616), (1757, 146520), (1848, 139305), (1980, 130018), (2008, 128205), (2035, 126504), (2072, 124245), (2220, 115962), (2259, 113960), (2310, 111444), (2331, 110440), (2442, 105420), (2510, 102564), (2520, 102157), (2590, 99396), (2664, 96635), (2761, 93240), (2772, 92870), (2849, 90360), (3012, 85470), (3080, 83583), (3108, 82830), (3256, 79065), (3330, 77308), (3465, 74296), (3514, 73260), (3663, 70280), (3765, 68376), (3885, 66264), (3960, 65009), (4070, 63252), (4440, 57981), (4518, 56980), (4620, 55722), (4662, 55220), (4884, 52710), (5020, 51282), (5180, 49698), (5271, 48840), (5522, 46620), (5544, 46435), (5698, 45180), (6024, 42735), (6105, 42168), (6216, 41415), (6660, 38654), (6930, 37148), (7028, 36630), (7326, 35140), (7530, 34188), (7770, 33132), (8140, 31626), (8283, 31080), (8547, 30120), (8785, 29304), (9036, 28490), (9240, 27861), (9287, 27720), (9324, 27610), (9768, 26355), (10040, 25641), (10360, 24849), (10542, 24420), (11044, 23310), (11295, 22792), (11396, 22590), (11655, 22088), (12210, 21084), (13320, 19327), (13805, 18648), (13860, 18574), (14056, 18315), (14245, 18072), (14652, 17570), (15060, 17094), (15540, 16566), (15813, 16280)]