7909400

素因数分解:

$2^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{557}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 18681840

約数和(自身を除く): 10772440

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 142, 200, 284, 355, 557, 568, 710, 1114, 1420, 1775, 2228, 2785, 2840, 3550, 4456, 5570, 7100, 11140, 13925, 14200, 22280, 27850, 39547, 55700, 79094, 111400, 158188, 197735, 316376, 395470, 790940, 988675, 1581880, 1977350, 3954700, 7909400]

約数ペア:

[(1, 7909400), (2, 3954700), (4, 1977350), (5, 1581880), (8, 988675), (10, 790940), (20, 395470), (25, 316376), (40, 197735), (50, 158188), (71, 111400), (100, 79094), (142, 55700), (200, 39547), (284, 27850), (355, 22280), (557, 14200), (568, 13925), (710, 11140), (1114, 7100), (1420, 5570), (1775, 4456), (2228, 3550), (2785, 2840)]