15199120

素因数分解:

$2^4\times 5^1\times {\mathrm{189989}}^1$

素因数の和:190002

約数の個数: 20

約数和(自身を含む): 35338140

約数和(自身を除く): 20139020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 189989, 379978, 759956, 949945, 1519912, 1899890, 3039824, 3799780, 7599560, 15199120]

約数ペア:

[(1, 15199120), (2, 7599560), (4, 3799780), (5, 3039824), (8, 1899890), (10, 1519912), (16, 949945), (20, 759956), (40, 379978), (80, 189989)]