31551260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{121351}}^1$

素因数の和:121373

約数の個数: 24

約数和(自身を含む): 71354976

約数和(自身を除く): 39803716

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 121351, 242702, 485404, 606755, 1213510, 1577563, 2427020, 3155126, 6310252, 7887815, 15775630, 31551260]

約数ペア:

[(1, 31551260), (2, 15775630), (4, 7887815), (5, 6310252), (10, 3155126), (13, 2427020), (20, 1577563), (26, 1213510), (52, 606755), (65, 485404), (130, 242702), (260, 121351)]