25920375

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^2\times {\mathrm{409}}^1$

素因数の和:453

約数の個数: 48

約数和(自身を含む): 46818720

約数和(自身を除く): 20898345

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 125, 169, 195, 325, 375, 409, 507, 845, 975, 1227, 1625, 2045, 2535, 4225, 4875, 5317, 6135, 10225, 12675, 15951, 21125, 26585, 30675, 51125, 63375, 69121, 79755, 132925, 153375, 207363, 345605, 398775, 664625, 1036815, 1728025, 1993875, 5184075, 8640125, 25920375]

約数ペア:

[(1, 25920375), (3, 8640125), (5, 5184075), (13, 1993875), (15, 1728025), (25, 1036815), (39, 664625), (65, 398775), (75, 345605), (125, 207363), (169, 153375), (195, 132925), (325, 79755), (375, 69121), (409, 63375), (507, 51125), (845, 30675), (975, 26585), (1227, 21125), (1625, 15951), (2045, 12675), (2535, 10225), (4225, 6135), (4875, 5317)]