90131870

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{1171}}^1$

素因数の和:1400

約数の個数: 32

約数和(自身を含む): 167080320

約数和(自身を除く): 76948450

約数列:

[1, 2, 5, 10, 43, 86, 179, 215, 358, 430, 895, 1171, 1790, 2342, 5855, 7697, 11710, 15394, 38485, 50353, 76970, 100706, 209609, 251765, 419218, 503530, 1048045, 2096090, 9013187, 18026374, 45065935, 90131870]

約数ペア:

[(1, 90131870), (2, 45065935), (5, 18026374), (10, 9013187), (43, 2096090), (86, 1048045), (179, 503530), (215, 419218), (358, 251765), (430, 209609), (895, 100706), (1171, 76970), (1790, 50353), (2342, 38485), (5855, 15394), (7697, 11710)]