31880460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{719}}^1\times {\mathrm{739}}^1$

素因数の和:1470

約数の個数: 48

約数和(自身を含む): 89510400

約数和(自身を除く): 57629940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 719, 739, 1438, 1478, 2157, 2217, 2876, 2956, 3595, 3695, 4314, 4434, 7190, 7390, 8628, 8868, 10785, 11085, 14380, 14780, 21570, 22170, 43140, 44340, 531341, 1062682, 1594023, 2125364, 2656705, 3188046, 5313410, 6376092, 7970115, 10626820, 15940230, 31880460]

約数ペア:

[(1, 31880460), (2, 15940230), (3, 10626820), (4, 7970115), (5, 6376092), (6, 5313410), (10, 3188046), (12, 2656705), (15, 2125364), (20, 1594023), (30, 1062682), (60, 531341), (719, 44340), (739, 43140), (1438, 22170), (1478, 21570), (2157, 14780), (2217, 14380), (2876, 11085), (2956, 10785), (3595, 8868), (3695, 8628), (4314, 7390), (4434, 7190)]