90128170

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{557}}^1\times {\mathrm{1471}}^1$

素因数の和:2046

約数の個数: 32

約数和(自身を含む): 177417216

約数和(自身を除く): 87289046

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 557, 1114, 1471, 2785, 2942, 5570, 6127, 7355, 12254, 14710, 16181, 30635, 32362, 61270, 80905, 161810, 819347, 1638694, 4096735, 8193470, 9012817, 18025634, 45064085, 90128170]

約数ペア:

[(1, 90128170), (2, 45064085), (5, 18025634), (10, 9012817), (11, 8193470), (22, 4096735), (55, 1638694), (110, 819347), (557, 161810), (1114, 80905), (1471, 61270), (2785, 32362), (2942, 30635), (5570, 16181), (6127, 14710), (7355, 12254)]