28343620

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{17939}}^1$

素因数の和:18027

約数の個数: 24

約数和(自身を含む): 60278400

約数和(自身を除く): 31934780

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 17939, 35878, 71756, 89695, 179390, 358780, 1417181, 2834362, 5668724, 7085905, 14171810, 28343620]

約数ペア:

[(1, 28343620), (2, 14171810), (4, 7085905), (5, 5668724), (10, 2834362), (20, 1417181), (79, 358780), (158, 179390), (316, 89695), (395, 71756), (790, 35878), (1580, 17939)]