64991090

素因数分解:

$2^1\times 5^1\times {\mathrm{419}}^1\times {\mathrm{15511}}^1$

素因数の和:15937

約数の個数: 16

約数和(自身を含む): 117270720

約数和(自身を除く): 52279630

約数列:

[1, 2, 5, 10, 419, 838, 2095, 4190, 15511, 31022, 77555, 155110, 6499109, 12998218, 32495545, 64991090]

約数ペア:

[(1, 64991090), (2, 32495545), (5, 12998218), (10, 6499109), (419, 155110), (838, 77555), (2095, 31022), (4190, 15511)]