12791180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{821}}^1$

素因数の和:890

約数の個数: 48

約数和(自身を含む): 29000160

約数和(自身を除く): 16208980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 821, 1558, 1642, 3116, 3284, 3895, 4105, 7790, 8210, 15580, 15599, 16420, 31198, 33661, 62396, 67322, 77995, 134644, 155990, 168305, 311980, 336610, 639559, 673220, 1279118, 2558236, 3197795, 6395590, 12791180]

約数ペア:

[(1, 12791180), (2, 6395590), (4, 3197795), (5, 2558236), (10, 1279118), (19, 673220), (20, 639559), (38, 336610), (41, 311980), (76, 168305), (82, 155990), (95, 134644), (164, 77995), (190, 67322), (205, 62396), (380, 33661), (410, 31198), (779, 16420), (820, 15599), (821, 15580), (1558, 8210), (1642, 7790), (3116, 4105), (3284, 3895)]