28680120

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{599}}^1$

素因数の和:642

約数の個数: 192

約数和(自身を含む): 112320000

約数和(自身を除く): 83639880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 19, 20, 21, 24, 28, 30, 35, 36, 38, 40, 42, 45, 56, 57, 60, 63, 70, 72, 76, 84, 90, 95, 105, 114, 120, 126, 133, 140, 152, 168, 171, 180, 190, 210, 228, 252, 266, 280, 285, 315, 342, 360, 380, 399, 420, 456, 504, 532, 570, 599, 630, 665, 684, 760, 798, 840, 855, 1064, 1140, 1197, 1198, 1260, 1330, 1368, 1596, 1710, 1797, 1995, 2280, 2394, 2396, 2520, 2660, 2995, 3192, 3420, 3594, 3990, 4193, 4788, 4792, 5320, 5391, 5985, 5990, 6840, 7188, 7980, 8386, 8985, 9576, 10782, 11381, 11970, 11980, 12579, 14376, 15960, 16772, 17970, 20965, 21564, 22762, 23940, 23960, 25158, 26955, 33544, 34143, 35940, 37737, 41930, 43128, 45524, 47880, 50316, 53910, 56905, 62895, 68286, 71880, 75474, 79667, 83860, 91048, 100632, 102429, 107820, 113810, 125790, 136572, 150948, 159334, 167720, 170715, 188685, 204858, 215640, 227620, 239001, 251580, 273144, 301896, 318668, 341430, 377370, 398335, 409716, 455240, 478002, 503160, 512145, 637336, 682860, 717003, 754740, 796670, 819432, 956004, 1024290, 1195005, 1365720, 1434006, 1509480, 1593340, 1912008, 2048580, 2390010, 2868012, 3186680, 3585015, 4097160, 4780020, 5736024, 7170030, 9560040, 14340060, 28680120]

約数ペア:

[(1, 28680120), (2, 14340060), (3, 9560040), (4, 7170030), (5, 5736024), (6, 4780020), (7, 4097160), (8, 3585015), (9, 3186680), (10, 2868012), (12, 2390010), (14, 2048580), (15, 1912008), (18, 1593340), (19, 1509480), (20, 1434006), (21, 1365720), (24, 1195005), (28, 1024290), (30, 956004), (35, 819432), (36, 796670), (38, 754740), (40, 717003), (42, 682860), (45, 637336), (56, 512145), (57, 503160), (60, 478002), (63, 455240), (70, 409716), (72, 398335), (76, 377370), (84, 341430), (90, 318668), (95, 301896), (105, 273144), (114, 251580), (120, 239001), (126, 227620), (133, 215640), (140, 204858), (152, 188685), (168, 170715), (171, 167720), (180, 159334), (190, 150948), (210, 136572), (228, 125790), (252, 113810), (266, 107820), (280, 102429), (285, 100632), (315, 91048), (342, 83860), (360, 79667), (380, 75474), (399, 71880), (420, 68286), (456, 62895), (504, 56905), (532, 53910), (570, 50316), (599, 47880), (630, 45524), (665, 43128), (684, 41930), (760, 37737), (798, 35940), (840, 34143), (855, 33544), (1064, 26955), (1140, 25158), (1197, 23960), (1198, 23940), (1260, 22762), (1330, 21564), (1368, 20965), (1596, 17970), (1710, 16772), (1797, 15960), (1995, 14376), (2280, 12579), (2394, 11980), (2396, 11970), (2520, 11381), (2660, 10782), (2995, 9576), (3192, 8985), (3420, 8386), (3594, 7980), (3990, 7188), (4193, 6840), (4788, 5990), (4792, 5985), (5320, 5391)]