217376080

素因数分解:

$2^4\times 5^1\times {\mathrm{2717201}}^1$

素因数の和:2717214

約数の個数: 20

約数和(自身を含む): 505399572

約数和(自身を除く): 288023492

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2717201, 5434402, 10868804, 13586005, 21737608, 27172010, 43475216, 54344020, 108688040, 217376080]

約数ペア:

[(1, 217376080), (2, 108688040), (4, 54344020), (5, 43475216), (8, 27172010), (10, 21737608), (16, 13586005), (20, 10868804), (40, 5434402), (80, 2717201)]