68654890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{3881}}^1$

素因数の和:3978

約数の個数: 32

約数和(自身を含む): 129969360

約数和(自身を除く): 61314470

約数列:

[1, 2, 5, 10, 29, 58, 61, 122, 145, 290, 305, 610, 1769, 3538, 3881, 7762, 8845, 17690, 19405, 38810, 112549, 225098, 236741, 473482, 562745, 1125490, 1183705, 2367410, 6865489, 13730978, 34327445, 68654890]

約数ペア:

[(1, 68654890), (2, 34327445), (5, 13730978), (10, 6865489), (29, 2367410), (58, 1183705), (61, 1125490), (122, 562745), (145, 473482), (290, 236741), (305, 225098), (610, 112549), (1769, 38810), (3538, 19405), (3881, 17690), (7762, 8845)]