31020665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{419}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 43182720

約数和(自身を除く): 12162055

約数列:

[1, 5, 13, 17, 65, 67, 85, 221, 335, 419, 871, 1105, 1139, 2095, 4355, 5447, 5695, 7123, 14807, 27235, 28073, 35615, 74035, 92599, 140365, 364949, 462995, 477241, 1824745, 2386205, 6204133, 31020665]

約数ペア:

[(1, 31020665), (5, 6204133), (13, 2386205), (17, 1824745), (65, 477241), (67, 462995), (85, 364949), (221, 140365), (335, 92599), (419, 74035), (871, 35615), (1105, 28073), (1139, 27235), (2095, 14807), (4355, 7123), (5447, 5695)]