28675125

素因数分解:

$3^2\times 5^3\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:451

約数の個数: 48

約数和(自身を含む): 52565760

約数和(自身を除く): 23890635

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 125, 213, 225, 355, 359, 375, 639, 1065, 1077, 1125, 1775, 1795, 3195, 3231, 5325, 5385, 8875, 8975, 15975, 16155, 25489, 26625, 26925, 44875, 76467, 79875, 80775, 127445, 134625, 229401, 382335, 403875, 637225, 1147005, 1911675, 3186125, 5735025, 9558375, 28675125]

約数ペア:

[(1, 28675125), (3, 9558375), (5, 5735025), (9, 3186125), (15, 1911675), (25, 1147005), (45, 637225), (71, 403875), (75, 382335), (125, 229401), (213, 134625), (225, 127445), (355, 80775), (359, 79875), (375, 76467), (639, 44875), (1065, 26925), (1077, 26625), (1125, 25489), (1775, 16155), (1795, 15975), (3195, 8975), (3231, 8875), (5325, 5385)]