401512780

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{55921}}^1$

素因数の和:56289

約数の個数: 24

約数和(自身を含む): 845540640

約数和(自身を除く): 444027860

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1795, 3590, 7180, 55921, 111842, 223684, 279605, 559210, 1118420, 20075639, 40151278, 80302556, 100378195, 200756390, 401512780]

約数ペア:

[(1, 401512780), (2, 200756390), (4, 100378195), (5, 80302556), (10, 40151278), (20, 20075639), (359, 1118420), (718, 559210), (1436, 279605), (1795, 223684), (3590, 111842), (7180, 55921)]