64045540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{246329}}^1$

素因数の和:246351

約数の個数: 24

約数和(自身を含む): 144842040

約数和(自身を除く): 80796500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 246329, 492658, 985316, 1231645, 2463290, 3202277, 4926580, 6404554, 12809108, 16011385, 32022770, 64045540]

約数ペア:

[(1, 64045540), (2, 32022770), (4, 16011385), (5, 12809108), (10, 6404554), (13, 4926580), (20, 3202277), (26, 2463290), (52, 1231645), (65, 985316), (130, 492658), (260, 246329)]