20880451585

素因数分解:

$5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1397153}}^1$

素因数の和:1397233

約数の個数: 24

約数和(自身を含む): 29625253416

約数和(自身を除く): 8744801831

約数列:

[1, 5, 7, 35, 49, 61, 245, 305, 427, 2135, 2989, 14945, 1397153, 6985765, 9780071, 48900355, 68460497, 85226333, 342302485, 426131665, 596584331, 2982921655, 4176090317, 20880451585]

約数ペア:

[(1, 20880451585), (5, 4176090317), (7, 2982921655), (35, 596584331), (49, 426131665), (61, 342302485), (245, 85226333), (305, 68460497), (427, 48900355), (2135, 9780071), (2989, 6985765), (14945, 1397153)]