64807970

素因数分解:

$2^1\times 5^1\times {\mathrm{643}}^1\times {\mathrm{10079}}^1$

素因数の和:10729

約数の個数: 16

約数和(自身を含む): 116847360

約数和(自身を除く): 52039390

約数列:

[1, 2, 5, 10, 643, 1286, 3215, 6430, 10079, 20158, 50395, 100790, 6480797, 12961594, 32403985, 64807970]

約数ペア:

[(1, 64807970), (2, 32403985), (5, 12961594), (10, 6480797), (643, 100790), (1286, 50395), (3215, 20158), (6430, 10079)]