28220925

素因数分解:

$3^1\times 5^2\times {\mathrm{317}}^1\times {\mathrm{1187}}^1$

素因数の和:1517

約数の個数: 24

約数和(自身を含む): 46845216

約数和(自身を除く): 18624291

約数列:

[1, 3, 5, 15, 25, 75, 317, 951, 1187, 1585, 3561, 4755, 5935, 7925, 17805, 23775, 29675, 89025, 376279, 1128837, 1881395, 5644185, 9406975, 28220925]

約数ペア:

[(1, 28220925), (3, 9406975), (5, 5644185), (15, 1881395), (25, 1128837), (75, 376279), (317, 89025), (951, 29675), (1187, 23775), (1585, 17805), (3561, 7925), (4755, 5935)]