4027420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2549}}^1$

素因数の和:2637

約数の個数: 24

約数和(自身を含む): 8568000

約数和(自身を除く): 4540580

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 2549, 5098, 10196, 12745, 25490, 50980, 201371, 402742, 805484, 1006855, 2013710, 4027420]

約数ペア:

[(1, 4027420), (2, 2013710), (4, 1006855), (5, 805484), (10, 402742), (20, 201371), (79, 50980), (158, 25490), (316, 12745), (395, 10196), (790, 5098), (1580, 2549)]