686807680

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{82549}}^1$

素因数の和:82581

約数の個数: 64

約数和(自身を含む): 1768221000

約数和(自身を除く): 1081413320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320, 82549, 165098, 330196, 412745, 660392, 825490, 1073137, 1320784, 1650980, 2146274, 2641568, 3301960, 4292548, 5283136, 5365685, 6603920, 8585096, 10566272, 10731370, 13207840, 17170192, 21462740, 26415680, 34340384, 42925480, 52831360, 68680768, 85850960, 137361536, 171701920, 343403840, 686807680]

約数ペア:

[(1, 686807680), (2, 343403840), (4, 171701920), (5, 137361536), (8, 85850960), (10, 68680768), (13, 52831360), (16, 42925480), (20, 34340384), (26, 26415680), (32, 21462740), (40, 17170192), (52, 13207840), (64, 10731370), (65, 10566272), (80, 8585096), (104, 6603920), (128, 5365685), (130, 5283136), (160, 4292548), (208, 3301960), (260, 2641568), (320, 2146274), (416, 1650980), (520, 1320784), (640, 1073137), (832, 825490), (1040, 660392), (1664, 412745), (2080, 330196), (4160, 165098), (8320, 82549)]