19879210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{5273}}^1$

素因数の和:5322

約数の個数: 32

約数和(自身を含む): 39871440

約数和(自身を除く): 19992230

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 3770, 5273, 10546, 26365, 52730, 68549, 137098, 152917, 305834, 342745, 685490, 764585, 1529170, 1987921, 3975842, 9939605, 19879210]

約数ペア:

[(1, 19879210), (2, 9939605), (5, 3975842), (10, 1987921), (13, 1529170), (26, 764585), (29, 685490), (58, 342745), (65, 305834), (130, 152917), (145, 137098), (290, 68549), (377, 52730), (754, 26365), (1885, 10546), (3770, 5273)]