90809710

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{1619}}^1$

素因数の和:1776

約数の個数: 32

約数和(自身を含む): 167961600

約数和(自身を除く): 77151890

約数列:

[1, 2, 5, 10, 71, 79, 142, 158, 355, 395, 710, 790, 1619, 3238, 5609, 8095, 11218, 16190, 28045, 56090, 114949, 127901, 229898, 255802, 574745, 639505, 1149490, 1279010, 9080971, 18161942, 45404855, 90809710]

約数ペア:

[(1, 90809710), (2, 45404855), (5, 18161942), (10, 9080971), (71, 1279010), (79, 1149490), (142, 639505), (158, 574745), (355, 255802), (395, 229898), (710, 127901), (790, 114949), (1619, 56090), (3238, 28045), (5609, 16190), (8095, 11218)]