28667475

素因数分解:

$3^2\times 5^2\times {\mathrm{103}}^1\times {\mathrm{1237}}^1$

素因数の和:1356

約数の個数: 36

約数和(自身を含む): 51887056

約数和(自身を除く): 23219581

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 103, 225, 309, 515, 927, 1237, 1545, 2575, 3711, 4635, 6185, 7725, 11133, 18555, 23175, 30925, 55665, 92775, 127411, 278325, 382233, 637055, 1146699, 1911165, 3185275, 5733495, 9555825, 28667475]

約数ペア:

[(1, 28667475), (3, 9555825), (5, 5733495), (9, 3185275), (15, 1911165), (25, 1146699), (45, 637055), (75, 382233), (103, 278325), (225, 127411), (309, 92775), (515, 55665), (927, 30925), (1237, 23175), (1545, 18555), (2575, 11133), (3711, 7725), (4635, 6185)]