12990890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{6947}}^1$

素因数の和:6982

約数の個数: 32

約数和(自身を含む): 27013824

約数和(自身を除く): 14022934

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 374, 935, 1870, 6947, 13894, 34735, 69470, 76417, 118099, 152834, 236198, 382085, 590495, 764170, 1180990, 1299089, 2598178, 6495445, 12990890]

約数ペア:

[(1, 12990890), (2, 6495445), (5, 2598178), (10, 1299089), (11, 1180990), (17, 764170), (22, 590495), (34, 382085), (55, 236198), (85, 152834), (110, 118099), (170, 76417), (187, 69470), (374, 34735), (935, 13894), (1870, 6947)]