28125585

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{8803}}^1$

素因数の和:8885

約数の個数: 24

約数和(自身を含む): 49443264

約数和(自身を除く): 21317679

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 8803, 26409, 44015, 79227, 132045, 396135, 625013, 1875039, 3125065, 5625117, 9375195, 28125585]

約数ペア:

[(1, 28125585), (3, 9375195), (5, 5625117), (9, 3125065), (15, 1875039), (45, 625013), (71, 396135), (213, 132045), (355, 79227), (639, 44015), (1065, 26409), (3195, 8803)]