80321380

素因数分解:

$2^2\times 5^1\times {\mathrm{1823}}^1\times {\mathrm{2203}}^1$

素因数の和:4035

約数の個数: 24

約数和(自身を含む): 168844032

約数和(自身を除く): 88522652

約数列:

[1, 2, 4, 5, 10, 20, 1823, 2203, 3646, 4406, 7292, 8812, 9115, 11015, 18230, 22030, 36460, 44060, 4016069, 8032138, 16064276, 20080345, 40160690, 80321380]

約数ペア:

[(1, 80321380), (2, 40160690), (4, 20080345), (5, 16064276), (10, 8032138), (20, 4016069), (1823, 44060), (2203, 36460), (3646, 22030), (4406, 18230), (7292, 11015), (8812, 9115)]