204434800

素因数分解:

$2^4\times 5^2\times {\mathrm{511087}}^1$

素因数の和:511105

約数の個数: 30

約数和(自身を含む): 491155568

約数和(自身を除く): 286720768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 511087, 1022174, 2044348, 2555435, 4088696, 5110870, 8177392, 10221740, 12777175, 20443480, 25554350, 40886960, 51108700, 102217400, 204434800]

約数ペア:

[(1, 204434800), (2, 102217400), (4, 51108700), (5, 40886960), (8, 25554350), (10, 20443480), (16, 12777175), (20, 10221740), (25, 8177392), (40, 5110870), (50, 4088696), (80, 2555435), (100, 2044348), (200, 1022174), (400, 511087)]