20520110

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{5443}}^1$

素因数の和:5492

約数の個数: 32

約数和(自身を含む): 41156640

約数和(自身を除く): 20636530

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 3770, 5443, 10886, 27215, 54430, 70759, 141518, 157847, 315694, 353795, 707590, 789235, 1578470, 2052011, 4104022, 10260055, 20520110]

約数ペア:

[(1, 20520110), (2, 10260055), (5, 4104022), (10, 2052011), (13, 1578470), (26, 789235), (29, 707590), (58, 353795), (65, 315694), (130, 157847), (145, 141518), (290, 70759), (377, 54430), (754, 27215), (1885, 10886), (3770, 5443)]