64642005

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{23549}}^1$

素因数の和:23621

約数の個数: 24

約数和(自身を含む): 113887800

約数和(自身を除く): 49245795

約数列:

[1, 3, 5, 9, 15, 45, 61, 183, 305, 549, 915, 2745, 23549, 70647, 117745, 211941, 353235, 1059705, 1436489, 4309467, 7182445, 12928401, 21547335, 64642005]

約数ペア:

[(1, 64642005), (3, 21547335), (5, 12928401), (9, 7182445), (15, 4309467), (45, 1436489), (61, 1059705), (183, 353235), (305, 211941), (549, 117745), (915, 70647), (2745, 23549)]