851680

素因数分解:

$2^5\times 5^1\times {\mathrm{5323}}^1$

素因数の和:5338

約数の個数: 24

約数和(自身を含む): 2012472

約数和(自身を除く): 1160792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 5323, 10646, 21292, 26615, 42584, 53230, 85168, 106460, 170336, 212920, 425840, 851680]

約数ペア:

[(1, 851680), (2, 425840), (4, 212920), (5, 170336), (8, 106460), (10, 85168), (16, 53230), (20, 42584), (32, 26615), (40, 21292), (80, 10646), (160, 5323)]