71178575

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{991}}^1$

素因数の和:1044

約数の個数: 36

約数和(自身を含む): 101297088

約数和(自身を除く): 30118513

約数列:

[1, 5, 13, 17, 25, 65, 85, 169, 221, 325, 425, 845, 991, 1105, 2873, 4225, 4955, 5525, 12883, 14365, 16847, 24775, 64415, 71825, 84235, 167479, 219011, 322075, 421175, 837395, 1095055, 2847143, 4186975, 5475275, 14235715, 71178575]

約数ペア:

[(1, 71178575), (5, 14235715), (13, 5475275), (17, 4186975), (25, 2847143), (65, 1095055), (85, 837395), (169, 421175), (221, 322075), (325, 219011), (425, 167479), (845, 84235), (991, 71825), (1105, 64415), (2873, 24775), (4225, 16847), (4955, 14365), (5525, 12883)]