19881480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3853}}^1$

素因数の和:3910

約数の個数: 64

約数和(自身を含む): 61047360

約数和(自身を除く): 41165880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 3853, 5160, 7706, 11559, 15412, 19265, 23118, 30824, 38530, 46236, 57795, 77060, 92472, 115590, 154120, 165679, 231180, 331358, 462360, 497037, 662716, 828395, 994074, 1325432, 1656790, 1988148, 2485185, 3313580, 3976296, 4970370, 6627160, 9940740, 19881480]

約数ペア:

[(1, 19881480), (2, 9940740), (3, 6627160), (4, 4970370), (5, 3976296), (6, 3313580), (8, 2485185), (10, 1988148), (12, 1656790), (15, 1325432), (20, 994074), (24, 828395), (30, 662716), (40, 497037), (43, 462360), (60, 331358), (86, 231180), (120, 165679), (129, 154120), (172, 115590), (215, 92472), (258, 77060), (344, 57795), (430, 46236), (516, 38530), (645, 30824), (860, 23118), (1032, 19265), (1290, 15412), (1720, 11559), (2580, 7706), (3853, 5160)]