1300240

素因数分解:

$2^4\times 5^1\times {\mathrm{16253}}^1$

素因数の和:16266

約数の個数: 20

約数和(自身を含む): 3023244

約数和(自身を除く): 1723004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 16253, 32506, 65012, 81265, 130024, 162530, 260048, 325060, 650120, 1300240]

約数ペア:

[(1, 1300240), (2, 650120), (4, 325060), (5, 260048), (8, 162530), (10, 130024), (16, 81265), (20, 65012), (40, 32506), (80, 16253)]