66877640

素因数分解:

$2^3\times 5^1\times {\mathrm{1671941}}^1$

素因数の和:1671952

約数の個数: 16

約数和(自身を含む): 150474780

約数和(自身を除く): 83597140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1671941, 3343882, 6687764, 8359705, 13375528, 16719410, 33438820, 66877640]

約数ペア:

[(1, 66877640), (2, 33438820), (4, 16719410), (5, 13375528), (8, 8359705), (10, 6687764), (20, 3343882), (40, 1671941)]