40768400

素因数分解:

$2^4\times 5^2\times {\mathrm{101921}}^1$

素因数の和:101939

約数の個数: 30

約数和(自身を含む): 97947042

約数和(自身を除く): 57178642

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 101921, 203842, 407684, 509605, 815368, 1019210, 1630736, 2038420, 2548025, 4076840, 5096050, 8153680, 10192100, 20384200, 40768400]

約数ペア:

[(1, 40768400), (2, 20384200), (4, 10192100), (5, 8153680), (8, 5096050), (10, 4076840), (16, 2548025), (20, 2038420), (25, 1630736), (40, 1019210), (50, 815368), (80, 509605), (100, 407684), (200, 203842), (400, 101921)]