28267850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{277}}^1$

素因数の和:459

約数の個数: 48

約数和(自身を含む): 57189048

約数和(自身を除く): 28921198

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 157, 277, 314, 325, 554, 650, 785, 1385, 1570, 2041, 2770, 3601, 3925, 4082, 6925, 7202, 7850, 10205, 13850, 18005, 20410, 36010, 43489, 51025, 86978, 90025, 102050, 180050, 217445, 434890, 565357, 1087225, 1130714, 2174450, 2826785, 5653570, 14133925, 28267850]

約数ペア:

[(1, 28267850), (2, 14133925), (5, 5653570), (10, 2826785), (13, 2174450), (25, 1130714), (26, 1087225), (50, 565357), (65, 434890), (130, 217445), (157, 180050), (277, 102050), (314, 90025), (325, 86978), (554, 51025), (650, 43489), (785, 36010), (1385, 20410), (1570, 18005), (2041, 13850), (2770, 10205), (3601, 7850), (3925, 7202), (4082, 6925)]