81770800

素因数分解:

$2^4\times 5^2\times {\mathrm{204427}}^1$

素因数の和:204445

約数の個数: 30

約数和(自身を含む): 196455308

約数和(自身を除く): 114684508

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 204427, 408854, 817708, 1022135, 1635416, 2044270, 3270832, 4088540, 5110675, 8177080, 10221350, 16354160, 20442700, 40885400, 81770800]

約数ペア:

[(1, 81770800), (2, 40885400), (4, 20442700), (5, 16354160), (8, 10221350), (10, 8177080), (16, 5110675), (20, 4088540), (25, 3270832), (40, 2044270), (50, 1635416), (80, 1022135), (100, 817708), (200, 408854), (400, 204427)]