245174540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{942979}}^1$

素因数の和:943001

約数の個数: 24

約数和(自身を含む): 554472240

約数和(自身を除く): 309297700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 942979, 1885958, 3771916, 4714895, 9429790, 12258727, 18859580, 24517454, 49034908, 61293635, 122587270, 245174540]

約数ペア:

[(1, 245174540), (2, 122587270), (4, 61293635), (5, 49034908), (10, 24517454), (13, 18859580), (20, 12258727), (26, 9429790), (52, 4714895), (65, 3771916), (130, 1885958), (260, 942979)]