64379540

素因数分解:

$2^2\times 5^1\times {\mathrm{1667}}^1\times {\mathrm{1931}}^1$

素因数の和:3607

約数の個数: 24

約数和(自身を含む): 135348192

約数和(自身を除く): 70968652

約数列:

[1, 2, 4, 5, 10, 20, 1667, 1931, 3334, 3862, 6668, 7724, 8335, 9655, 16670, 19310, 33340, 38620, 3218977, 6437954, 12875908, 16094885, 32189770, 64379540]

約数ペア:

[(1, 64379540), (2, 32189770), (4, 16094885), (5, 12875908), (10, 6437954), (20, 3218977), (1667, 38620), (1931, 33340), (3334, 19310), (3862, 16670), (6668, 9655), (7724, 8335)]