28128015

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{10247}}^1$

素因数の和:10319

約数の個数: 24

約数和(自身を含む): 49559328

約数和(自身を除く): 21431313

約数列:

[1, 3, 5, 9, 15, 45, 61, 183, 305, 549, 915, 2745, 10247, 30741, 51235, 92223, 153705, 461115, 625067, 1875201, 3125335, 5625603, 9376005, 28128015]

約数ペア:

[(1, 28128015), (3, 9376005), (5, 5625603), (9, 3125335), (15, 1875201), (45, 625067), (61, 461115), (183, 153705), (305, 92223), (549, 51235), (915, 30741), (2745, 10247)]