8945680

素因数分解:

$2^4\times 5^1\times {\mathrm{111821}}^1$

素因数の和:111834

約数の個数: 20

約数和(自身を含む): 20798892

約数和(自身を除く): 11853212

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 111821, 223642, 447284, 559105, 894568, 1118210, 1789136, 2236420, 4472840, 8945680]

約数ペア:

[(1, 8945680), (2, 4472840), (4, 2236420), (5, 1789136), (8, 1118210), (10, 894568), (16, 559105), (20, 447284), (40, 223642), (80, 111821)]