28228815

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{4513}}^1$

素因数の和:4663

約数の個数: 24

約数和(自身を含む): 49292880

約数和(自身を除く): 21064065

約数列:

[1, 3, 5, 9, 15, 45, 139, 417, 695, 1251, 2085, 4513, 6255, 13539, 22565, 40617, 67695, 203085, 627307, 1881921, 3136535, 5645763, 9409605, 28228815]

約数ペア:

[(1, 28228815), (3, 9409605), (5, 5645763), (9, 3136535), (15, 1881921), (45, 627307), (139, 203085), (417, 67695), (695, 40617), (1251, 22565), (2085, 13539), (4513, 6255)]