64270180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{247193}}^1$

素因数の和:247215

約数の個数: 24

約数和(自身を含む): 145350072

約数和(自身を除く): 81079892

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 247193, 494386, 988772, 1235965, 2471930, 3213509, 4943860, 6427018, 12854036, 16067545, 32135090, 64270180]

約数ペア:

[(1, 64270180), (2, 32135090), (4, 16067545), (5, 12854036), (10, 6427018), (13, 4943860), (20, 3213509), (26, 2471930), (52, 1235965), (65, 988772), (130, 494386), (260, 247193)]