28393.000000

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:127

約数の個数: 32

約数和(自身を含む): 1520640

約数和(自身を除く): 641505

約数列:

[1, 3, 5, 15, 29, 43, 47, 87, 129, 141, 145, 215, 235, 435, 645, 705, 1247, 1363, 2021, 3741, 4089, 6063, 6235, 6815, 10105, 18705, 20445, 30315, 58609, 175827, 293045, 879135]

約数ペア:

[(1, 879135), (3, 293045), (5, 175827), (15, 58609), (29, 30315), (43, 20445), (47, 18705), (87, 10105), (129, 6815), (141, 6235), (145, 6063), (215, 4089), (235, 3741), (435, 2021), (645, 1363), (705, 1247)]