1990400604189

素因数分解:

$3^1\times {\mathrm{397}}^1\times {\mathrm{421}}^1\times {\mathrm{719}}^1\times {\mathrm{5521}}^1$

素因数の和:7061

約数の個数: 32

約数和(自身を含む): 2671064732160

約数和(自身を除く): 680664127971

約数列:

[1, 3, 397, 421, 719, 1191, 1263, 2157, 5521, 16563, 167137, 285443, 302699, 501411, 856329, 908097, 2191837, 2324341, 3969599, 6575511, 6973023, 11908797, 120171503, 360514509, 922763377, 1575930803, 1671201179, 2768290131, 4727792409, 5013603537, 663466868063, 1990400604189]

約数ペア:

[(1, 1990400604189), (3, 663466868063), (397, 5013603537), (421, 4727792409), (719, 2768290131), (1191, 1671201179), (1263, 1575930803), (2157, 922763377), (5521, 360514509), (16563, 120171503), (167137, 11908797), (285443, 6973023), (302699, 6575511), (501411, 3969599), (856329, 2324341), (908097, 2191837)]