20539640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{46681}}^1$

素因数の和:46703

約数の個数: 32

約数和(自身を含む): 50416560

約数和(自身を除く): 29876920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 46681, 93362, 186724, 233405, 373448, 466810, 513491, 933620, 1026982, 1867240, 2053964, 2567455, 4107928, 5134910, 10269820, 20539640]

約数ペア:

[(1, 20539640), (2, 10269820), (4, 5134910), (5, 4107928), (8, 2567455), (10, 2053964), (11, 1867240), (20, 1026982), (22, 933620), (40, 513491), (44, 466810), (55, 373448), (88, 233405), (110, 186724), (220, 93362), (440, 46681)]