67898620

素因数分解:

$2^2\times 5^1\times {\mathrm{1571}}^1\times {\mathrm{2161}}^1$

素因数の和:3741

約数の個数: 24

約数和(自身を含む): 142743888

約数和(自身を除く): 74845268

約数列:

[1, 2, 4, 5, 10, 20, 1571, 2161, 3142, 4322, 6284, 7855, 8644, 10805, 15710, 21610, 31420, 43220, 3394931, 6789862, 13579724, 16974655, 33949310, 67898620]

約数ペア:

[(1, 67898620), (2, 33949310), (4, 16974655), (5, 13579724), (10, 6789862), (20, 3394931), (1571, 43220), (2161, 31420), (3142, 21610), (4322, 15710), (6284, 10805), (7855, 8644)]