81189309968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{5497651}}^1$

素因数の和:5497743

約数の個数: 40

約数和(自身を含む): 171790629696

約数和(自身を除く): 90601319728

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 71, 104, 142, 208, 284, 568, 923, 1136, 1846, 3692, 7384, 14768, 5497651, 10995302, 21990604, 43981208, 71469463, 87962416, 142938926, 285877852, 390333221, 571755704, 780666442, 1143511408, 1561332884, 3122665768, 5074331873, 6245331536, 10148663746, 20297327492, 40594654984, 81189309968]

約数ペア:

[(1, 81189309968), (2, 40594654984), (4, 20297327492), (8, 10148663746), (13, 6245331536), (16, 5074331873), (26, 3122665768), (52, 1561332884), (71, 1143511408), (104, 780666442), (142, 571755704), (208, 390333221), (284, 285877852), (568, 142938926), (923, 87962416), (1136, 71469463), (1846, 43981208), (3692, 21990604), (7384, 10995302), (14768, 5497651)]