81568160

素因数分解:

$2^5\times 5^1\times {\mathrm{509801}}^1$

素因数の和:509816

約数の個数: 24

約数和(自身を含む): 192705156

約数和(自身を除く): 111136996

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 509801, 1019602, 2039204, 2549005, 4078408, 5098010, 8156816, 10196020, 16313632, 20392040, 40784080, 81568160]

約数ペア:

[(1, 81568160), (2, 40784080), (4, 20392040), (5, 16313632), (8, 10196020), (10, 8156816), (16, 5098010), (20, 4078408), (32, 2549005), (40, 2039204), (80, 1019602), (160, 509801)]