72284680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^2\times {\mathrm{37}}^1$

素因数の和:108

約数の個数: 144

約数和(自身を含む): 192139020

約数和(自身を除く): 119854340

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 37, 40, 52, 65, 68, 74, 85, 104, 130, 136, 148, 169, 170, 185, 221, 260, 289, 296, 338, 340, 370, 442, 481, 520, 578, 629, 676, 680, 740, 845, 884, 962, 1105, 1156, 1258, 1352, 1445, 1480, 1690, 1768, 1924, 2210, 2312, 2405, 2516, 2873, 2890, 3145, 3380, 3757, 3848, 4420, 4810, 5032, 5746, 5780, 6253, 6290, 6760, 7514, 8177, 8840, 9620, 10693, 11492, 11560, 12506, 12580, 14365, 15028, 16354, 18785, 19240, 21386, 22984, 25012, 25160, 28730, 30056, 31265, 32708, 37570, 40885, 42772, 48841, 50024, 53465, 57460, 62530, 65416, 75140, 81770, 85544, 97682, 106301, 106930, 114920, 125060, 139009, 150280, 163540, 195364, 212602, 213860, 244205, 250120, 278018, 327080, 390728, 425204, 427720, 488410, 531505, 556036, 695045, 850408, 976820, 1063010, 1112072, 1390090, 1807117, 1953640, 2126020, 2780180, 3614234, 4252040, 5560360, 7228468, 9035585, 14456936, 18071170, 36142340, 72284680]

約数ペア:

[(1, 72284680), (2, 36142340), (4, 18071170), (5, 14456936), (8, 9035585), (10, 7228468), (13, 5560360), (17, 4252040), (20, 3614234), (26, 2780180), (34, 2126020), (37, 1953640), (40, 1807117), (52, 1390090), (65, 1112072), (68, 1063010), (74, 976820), (85, 850408), (104, 695045), (130, 556036), (136, 531505), (148, 488410), (169, 427720), (170, 425204), (185, 390728), (221, 327080), (260, 278018), (289, 250120), (296, 244205), (338, 213860), (340, 212602), (370, 195364), (442, 163540), (481, 150280), (520, 139009), (578, 125060), (629, 114920), (676, 106930), (680, 106301), (740, 97682), (845, 85544), (884, 81770), (962, 75140), (1105, 65416), (1156, 62530), (1258, 57460), (1352, 53465), (1445, 50024), (1480, 48841), (1690, 42772), (1768, 40885), (1924, 37570), (2210, 32708), (2312, 31265), (2405, 30056), (2516, 28730), (2873, 25160), (2890, 25012), (3145, 22984), (3380, 21386), (3757, 19240), (3848, 18785), (4420, 16354), (4810, 15028), (5032, 14365), (5746, 12580), (5780, 12506), (6253, 11560), (6290, 11492), (6760, 10693), (7514, 9620), (8177, 8840)]