64493260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{248051}}^1$

素因数の和:248073

約数の個数: 24

約数和(自身を含む): 145854576

約数和(自身を除く): 81361316

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 248051, 496102, 992204, 1240255, 2480510, 3224663, 4961020, 6449326, 12898652, 16123315, 32246630, 64493260]

約数ペア:

[(1, 64493260), (2, 32246630), (4, 16123315), (5, 12898652), (10, 6449326), (13, 4961020), (20, 3224663), (26, 2480510), (52, 1240255), (65, 992204), (130, 496102), (260, 248051)]