31557140

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{15319}}^1$

素因数の和:15431

約数の個数: 24

約数和(自身を含む): 66917760

約数和(自身を除く): 35360620

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 15319, 30638, 61276, 76595, 153190, 306380, 1577857, 3155714, 6311428, 7889285, 15778570, 31557140]

約数ペア:

[(1, 31557140), (2, 15778570), (4, 7889285), (5, 6311428), (10, 3155714), (20, 1577857), (103, 306380), (206, 153190), (412, 76595), (515, 61276), (1030, 30638), (2060, 15319)]