64902220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{104681}}^1$

素因数の和:104721

約数の個数: 24

約数和(自身を含む): 140692608

約数和(自身を除く): 75790388

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 104681, 209362, 418724, 523405, 1046810, 2093620, 3245111, 6490222, 12980444, 16225555, 32451110, 64902220]

約数ペア:

[(1, 64902220), (2, 32451110), (4, 16225555), (5, 12980444), (10, 6490222), (20, 3245111), (31, 2093620), (62, 1046810), (124, 523405), (155, 418724), (310, 209362), (620, 104681)]