1680454640

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{211}}^1\times {\mathrm{881}}^1$

素因数の和:1218

約数の個数: 80

約数和(自身を含む): 3964808736

約数和(自身を除く): 2284354096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 211, 226, 422, 452, 565, 844, 881, 904, 1055, 1130, 1688, 1762, 1808, 2110, 2260, 3376, 3524, 4220, 4405, 4520, 7048, 8440, 8810, 9040, 14096, 16880, 17620, 23843, 35240, 47686, 70480, 95372, 99553, 119215, 185891, 190744, 199106, 238430, 371782, 381488, 398212, 476860, 497765, 743564, 796424, 929455, 953720, 995530, 1487128, 1592848, 1858910, 1907440, 1991060, 2974256, 3717820, 3982120, 7435640, 7964240, 14871280, 21005683, 42011366, 84022732, 105028415, 168045464, 210056830, 336090928, 420113660, 840227320, 1680454640]

約数ペア:

[(1, 1680454640), (2, 840227320), (4, 420113660), (5, 336090928), (8, 210056830), (10, 168045464), (16, 105028415), (20, 84022732), (40, 42011366), (80, 21005683), (113, 14871280), (211, 7964240), (226, 7435640), (422, 3982120), (452, 3717820), (565, 2974256), (844, 1991060), (881, 1907440), (904, 1858910), (1055, 1592848), (1130, 1487128), (1688, 995530), (1762, 953720), (1808, 929455), (2110, 796424), (2260, 743564), (3376, 497765), (3524, 476860), (4220, 398212), (4405, 381488), (4520, 371782), (7048, 238430), (8440, 199106), (8810, 190744), (9040, 185891), (14096, 119215), (16880, 99553), (17620, 95372), (23843, 70480), (35240, 47686)]