15620240

素因数分解:

$2^4\times 5^1\times {\mathrm{195253}}^1$

素因数の和:195266

約数の個数: 20

約数和(自身を含む): 36317244

約数和(自身を除く): 20697004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 195253, 390506, 781012, 976265, 1562024, 1952530, 3124048, 3905060, 7810120, 15620240]

約数ペア:

[(1, 15620240), (2, 7810120), (4, 3905060), (5, 3124048), (8, 1952530), (10, 1562024), (16, 976265), (20, 781012), (40, 390506), (80, 195253)]