262720005

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{631}}^1\times {\mathrm{677}}^1$

素因数の和:1357

約数の個数: 32

約数和(自身を含む): 431923968

約数和(自身を除く): 169203963

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 631, 677, 1893, 2031, 3155, 3385, 9465, 10155, 25871, 27757, 77613, 83271, 129355, 138785, 388065, 416355, 427187, 1281561, 2135935, 6407805, 17514667, 52544001, 87573335, 262720005]

約数ペア:

[(1, 262720005), (3, 87573335), (5, 52544001), (15, 17514667), (41, 6407805), (123, 2135935), (205, 1281561), (615, 427187), (631, 416355), (677, 388065), (1893, 138785), (2031, 129355), (3155, 83271), (3385, 77613), (9465, 27757), (10155, 25871)]