1657420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1049}}^1$

素因数の和:1137

約数の個数: 24

約数和(自身を含む): 3528000

約数和(自身を除く): 1870580

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1049, 1580, 2098, 4196, 5245, 10490, 20980, 82871, 165742, 331484, 414355, 828710, 1657420]

約数ペア:

[(1, 1657420), (2, 828710), (4, 414355), (5, 331484), (10, 165742), (20, 82871), (79, 20980), (158, 10490), (316, 5245), (395, 4196), (790, 2098), (1049, 1580)]