20218997045

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{367}}^1\times {\mathrm{383}}^1\times {\mathrm{2213}}^1$

素因数の和:2981

約数の個数: 32

約数和(自身を含む): 26280640512

約数和(自身を除く): 6061643467

約数列:

[1, 5, 13, 65, 367, 383, 1835, 1915, 2213, 4771, 4979, 11065, 23855, 24895, 28769, 140561, 143845, 702805, 812171, 847579, 1827293, 4060855, 4237895, 9136465, 10558223, 11018527, 52791115, 55092635, 311061493, 1555307465, 4043799409, 20218997045]

約数ペア:

[(1, 20218997045), (5, 4043799409), (13, 1555307465), (65, 311061493), (367, 55092635), (383, 52791115), (1835, 11018527), (1915, 10558223), (2213, 9136465), (4771, 4237895), (4979, 4060855), (11065, 1827293), (23855, 847579), (24895, 812171), (28769, 702805), (140561, 143845)]