256412520

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2609}}^1$

素因数の和:2649

約数の個数: 256

約数和(自身を含む): 1052352000

約数和(自身を除く): 795939480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 20, 21, 24, 26, 27, 28, 30, 35, 36, 39, 40, 42, 45, 52, 54, 56, 60, 63, 65, 70, 72, 78, 84, 90, 91, 104, 105, 108, 117, 120, 126, 130, 135, 140, 156, 168, 180, 182, 189, 195, 210, 216, 234, 252, 260, 270, 273, 280, 312, 315, 351, 360, 364, 378, 390, 420, 455, 468, 504, 520, 540, 546, 585, 630, 702, 728, 756, 780, 819, 840, 910, 936, 945, 1080, 1092, 1170, 1260, 1365, 1404, 1512, 1560, 1638, 1755, 1820, 1890, 2184, 2340, 2457, 2520, 2609, 2730, 2808, 3276, 3510, 3640, 3780, 4095, 4680, 4914, 5218, 5460, 6552, 7020, 7560, 7827, 8190, 9828, 10436, 10920, 12285, 13045, 14040, 15654, 16380, 18263, 19656, 20872, 23481, 24570, 26090, 31308, 32760, 33917, 36526, 39135, 46962, 49140, 52180, 54789, 62616, 67834, 70443, 73052, 78270, 91315, 93924, 98280, 101751, 104360, 109578, 117405, 135668, 140886, 146104, 156540, 164367, 169585, 182630, 187848, 203502, 219156, 234810, 237419, 271336, 273945, 281772, 305253, 313080, 328734, 339170, 352215, 365260, 407004, 438312, 469620, 474838, 493101, 508755, 547890, 563544, 610506, 657468, 678340, 704430, 712257, 730520, 814008, 821835, 915759, 939240, 949676, 986202, 1017510, 1095780, 1187095, 1221012, 1314936, 1356680, 1408860, 1424514, 1526265, 1643670, 1831518, 1899352, 1972404, 2035020, 2136771, 2191560, 2374190, 2442024, 2465505, 2817720, 2849028, 3052530, 3287340, 3561285, 3663036, 3944808, 4070040, 4273542, 4578795, 4748380, 4931010, 5698056, 6105060, 6410313, 6574680, 7122570, 7326072, 8547084, 9157590, 9496760, 9862020, 10683855, 12210120, 12820626, 14245140, 17094168, 18315180, 19724040, 21367710, 25641252, 28490280, 32051565, 36630360, 42735420, 51282504, 64103130, 85470840, 128206260, 256412520]

約数ペア:

[(1, 256412520), (2, 128206260), (3, 85470840), (4, 64103130), (5, 51282504), (6, 42735420), (7, 36630360), (8, 32051565), (9, 28490280), (10, 25641252), (12, 21367710), (13, 19724040), (14, 18315180), (15, 17094168), (18, 14245140), (20, 12820626), (21, 12210120), (24, 10683855), (26, 9862020), (27, 9496760), (28, 9157590), (30, 8547084), (35, 7326072), (36, 7122570), (39, 6574680), (40, 6410313), (42, 6105060), (45, 5698056), (52, 4931010), (54, 4748380), (56, 4578795), (60, 4273542), (63, 4070040), (65, 3944808), (70, 3663036), (72, 3561285), (78, 3287340), (84, 3052530), (90, 2849028), (91, 2817720), (104, 2465505), (105, 2442024), (108, 2374190), (117, 2191560), (120, 2136771), (126, 2035020), (130, 1972404), (135, 1899352), (140, 1831518), (156, 1643670), (168, 1526265), (180, 1424514), (182, 1408860), (189, 1356680), (195, 1314936), (210, 1221012), (216, 1187095), (234, 1095780), (252, 1017510), (260, 986202), (270, 949676), (273, 939240), (280, 915759), (312, 821835), (315, 814008), (351, 730520), (360, 712257), (364, 704430), (378, 678340), (390, 657468), (420, 610506), (455, 563544), (468, 547890), (504, 508755), (520, 493101), (540, 474838), (546, 469620), (585, 438312), (630, 407004), (702, 365260), (728, 352215), (756, 339170), (780, 328734), (819, 313080), (840, 305253), (910, 281772), (936, 273945), (945, 271336), (1080, 237419), (1092, 234810), (1170, 219156), (1260, 203502), (1365, 187848), (1404, 182630), (1512, 169585), (1560, 164367), (1638, 156540), (1755, 146104), (1820, 140886), (1890, 135668), (2184, 117405), (2340, 109578), (2457, 104360), (2520, 101751), (2609, 98280), (2730, 93924), (2808, 91315), (3276, 78270), (3510, 73052), (3640, 70443), (3780, 67834), (4095, 62616), (4680, 54789), (4914, 52180), (5218, 49140), (5460, 46962), (6552, 39135), (7020, 36526), (7560, 33917), (7827, 32760), (8190, 31308), (9828, 26090), (10436, 24570), (10920, 23481), (12285, 20872), (13045, 19656), (14040, 18263), (15654, 16380)]