28162280

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{2221}}^1$

素因数の和:2549

約数の個数: 32

約数和(自身を含む): 63593640

約数和(自身を除く): 35431360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2221, 2536, 3170, 4442, 6340, 8884, 11105, 12680, 17768, 22210, 44420, 88840, 704057, 1408114, 2816228, 3520285, 5632456, 7040570, 14081140, 28162280]

約数ペア:

[(1, 28162280), (2, 14081140), (4, 7040570), (5, 5632456), (8, 3520285), (10, 2816228), (20, 1408114), (40, 704057), (317, 88840), (634, 44420), (1268, 22210), (1585, 17768), (2221, 12680), (2536, 11105), (3170, 8884), (4442, 6340)]