64752080

素因数分解:

$2^4\times 5^1\times {\mathrm{809401}}^1$

素因数の和:809414

約数の個数: 20

約数和(自身を含む): 150548772

約数和(自身を除く): 85796692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 809401, 1618802, 3237604, 4047005, 6475208, 8094010, 12950416, 16188020, 32376040, 64752080]

約数ペア:

[(1, 64752080), (2, 32376040), (4, 16188020), (5, 12950416), (8, 8094010), (10, 6475208), (16, 4047005), (20, 3237604), (40, 1618802), (80, 809401)]