681291260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{809}}^1$

素因数の和:951

約数の個数: 96

約数和(自身を含む): 1600300800

約数和(自身を除く): 919009540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 79, 82, 130, 158, 164, 205, 260, 316, 395, 410, 533, 790, 809, 820, 1027, 1066, 1580, 1618, 2054, 2132, 2665, 3236, 3239, 4045, 4108, 5135, 5330, 6478, 8090, 10270, 10517, 10660, 12956, 16180, 16195, 20540, 21034, 32390, 33169, 42068, 42107, 52585, 63911, 64780, 66338, 84214, 105170, 127822, 132676, 165845, 168428, 210340, 210535, 255644, 319555, 331690, 421070, 431197, 639110, 663380, 830843, 842140, 862394, 1278220, 1661686, 1724788, 2155985, 2620351, 3323372, 4154215, 4311970, 5240702, 8308430, 8623940, 10481404, 13101755, 16616860, 26203510, 34064563, 52407020, 68129126, 136258252, 170322815, 340645630, 681291260]

約数ペア:

[(1, 681291260), (2, 340645630), (4, 170322815), (5, 136258252), (10, 68129126), (13, 52407020), (20, 34064563), (26, 26203510), (41, 16616860), (52, 13101755), (65, 10481404), (79, 8623940), (82, 8308430), (130, 5240702), (158, 4311970), (164, 4154215), (205, 3323372), (260, 2620351), (316, 2155985), (395, 1724788), (410, 1661686), (533, 1278220), (790, 862394), (809, 842140), (820, 830843), (1027, 663380), (1066, 639110), (1580, 431197), (1618, 421070), (2054, 331690), (2132, 319555), (2665, 255644), (3236, 210535), (3239, 210340), (4045, 168428), (4108, 165845), (5135, 132676), (5330, 127822), (6478, 105170), (8090, 84214), (10270, 66338), (10517, 64780), (10660, 63911), (12956, 52585), (16180, 42107), (16195, 42068), (20540, 33169), (21034, 32390)]