28915725

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{22679}}^1$

素因数の和:22709

約数の個数: 24

約数和(自身を含む): 50621760

約数和(自身を除く): 21706035

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 22679, 68037, 113395, 340185, 385543, 566975, 1156629, 1700925, 1927715, 5783145, 9638575, 28915725]

約数ペア:

[(1, 28915725), (3, 9638575), (5, 5783145), (15, 1927715), (17, 1700925), (25, 1156629), (51, 566975), (75, 385543), (85, 340185), (255, 113395), (425, 68037), (1275, 22679)]