20165965040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19390351}}^1$

素因数の和:19390377

約数の個数: 40

約数和(自身を含む): 50492476608

約数和(自身を除く): 30326511568

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 19390351, 38780702, 77561404, 96951755, 155122808, 193903510, 252074563, 310245616, 387807020, 504149126, 775614040, 1008298252, 1260372815, 1551228080, 2016596504, 2520745630, 4033193008, 5041491260, 10082982520, 20165965040]

約数ペア:

[(1, 20165965040), (2, 10082982520), (4, 5041491260), (5, 4033193008), (8, 2520745630), (10, 2016596504), (13, 1551228080), (16, 1260372815), (20, 1008298252), (26, 775614040), (40, 504149126), (52, 387807020), (65, 310245616), (80, 252074563), (104, 193903510), (130, 155122808), (208, 96951755), (260, 77561404), (520, 38780702), (1040, 19390351)]