25237225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 36594880

約数和(自身を除く): 11357655

約数列:

[1, 5, 13, 19, 25, 61, 65, 67, 95, 247, 305, 325, 335, 475, 793, 871, 1159, 1235, 1273, 1525, 1675, 3965, 4087, 4355, 5795, 6175, 6365, 15067, 16549, 19825, 20435, 21775, 28975, 31825, 53131, 75335, 77653, 82745, 102175, 265655, 376675, 388265, 413725, 1009489, 1328275, 1941325, 5047445, 25237225]

約数ペア:

[(1, 25237225), (5, 5047445), (13, 1941325), (19, 1328275), (25, 1009489), (61, 413725), (65, 388265), (67, 376675), (95, 265655), (247, 102175), (305, 82745), (325, 77653), (335, 75335), (475, 53131), (793, 31825), (871, 28975), (1159, 21775), (1235, 20435), (1273, 19825), (1525, 16549), (1675, 15067), (3965, 6365), (4087, 6175), (4355, 5795)]