28288125

素因数分解:

$3^2\times 5^4\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:180

約数の個数: 60

約数和(自身を含む): 52633152

約数和(自身を除く): 24345027

約数列:

[1, 3, 5, 9, 15, 25, 45, 47, 75, 107, 125, 141, 225, 235, 321, 375, 423, 535, 625, 705, 963, 1125, 1175, 1605, 1875, 2115, 2675, 3525, 4815, 5029, 5625, 5875, 8025, 10575, 13375, 15087, 17625, 24075, 25145, 29375, 40125, 45261, 52875, 66875, 75435, 88125, 120375, 125725, 200625, 226305, 264375, 377175, 601875, 628625, 1131525, 1885875, 3143125, 5657625, 9429375, 28288125]

約数ペア:

[(1, 28288125), (3, 9429375), (5, 5657625), (9, 3143125), (15, 1885875), (25, 1131525), (45, 628625), (47, 601875), (75, 377175), (107, 264375), (125, 226305), (141, 200625), (225, 125725), (235, 120375), (321, 88125), (375, 75435), (423, 66875), (535, 52875), (625, 45261), (705, 40125), (963, 29375), (1125, 25145), (1175, 24075), (1605, 17625), (1875, 15087), (2115, 13375), (2675, 10575), (3525, 8025), (4815, 5875), (5029, 5625)]