87683780

素因数分解:

$2^2\times 5^1\times {\mathrm{4384189}}^1$

素因数の和:4384198

約数の個数: 12

約数和(自身を含む): 184135980

約数和(自身を除く): 96452200

約数列:

[1, 2, 4, 5, 10, 20, 4384189, 8768378, 17536756, 21920945, 43841890, 87683780]

約数ペア:

[(1, 87683780), (2, 43841890), (4, 21920945), (5, 17536756), (10, 8768378), (20, 4384189)]