1580240

素因数分解:

$2^4\times 5^1\times {\mathrm{19753}}^1$

素因数の和:19766

約数の個数: 20

約数和(自身を含む): 3674244

約数和(自身を除く): 2094004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 19753, 39506, 79012, 98765, 158024, 197530, 316048, 395060, 790120, 1580240]

約数ペア:

[(1, 1580240), (2, 790120), (4, 395060), (5, 316048), (8, 197530), (10, 158024), (16, 98765), (20, 79012), (40, 39506), (80, 19753)]