81888160

素因数分解:

$2^5\times 5^1\times {\mathrm{511801}}^1$

素因数の和:511816

約数の個数: 24

約数和(自身を含む): 193461156

約数和(自身を除く): 111572996

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 511801, 1023602, 2047204, 2559005, 4094408, 5118010, 8188816, 10236020, 16377632, 20472040, 40944080, 81888160]

約数ペア:

[(1, 81888160), (2, 40944080), (4, 20472040), (5, 16377632), (8, 10236020), (10, 8188816), (16, 5118010), (20, 4094408), (32, 2559005), (40, 2047204), (80, 1023602), (160, 511801)]