6397420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4049}}^1$

素因数の和:4137

約数の個数: 24

約数和(自身を含む): 13608000

約数和(自身を除く): 7210580

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 4049, 8098, 16196, 20245, 40490, 80980, 319871, 639742, 1279484, 1599355, 3198710, 6397420]

約数ペア:

[(1, 6397420), (2, 3198710), (4, 1599355), (5, 1279484), (10, 639742), (20, 319871), (79, 80980), (158, 40490), (316, 20245), (395, 16196), (790, 8098), (1580, 4049)]