66435940

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{19891}}^1$

素因数の和:20067

約数の個数: 24

約数和(自身を含む): 140357952

約数和(自身を除く): 73922012

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 3340, 19891, 39782, 79564, 99455, 198910, 397820, 3321797, 6643594, 13287188, 16608985, 33217970, 66435940]

約数ペア:

[(1, 66435940), (2, 33217970), (4, 16608985), (5, 13287188), (10, 6643594), (20, 3321797), (167, 397820), (334, 198910), (668, 99455), (835, 79564), (1670, 39782), (3340, 19891)]