61395640

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{19429}}^1$

素因数の和:19519

約数の個数: 32

約数和(自身を含む): 139896000

約数和(自身を除く): 78500360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 19429, 38858, 77716, 97145, 155432, 194290, 388580, 777160, 1534891, 3069782, 6139564, 7674455, 12279128, 15348910, 30697820, 61395640]

約数ペア:

[(1, 61395640), (2, 30697820), (4, 15348910), (5, 12279128), (8, 7674455), (10, 6139564), (20, 3069782), (40, 1534891), (79, 777160), (158, 388580), (316, 194290), (395, 155432), (632, 97145), (790, 77716), (1580, 38858), (3160, 19429)]