28479.000000

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1451}}^1$

素因数の和:1479

約数の個数: 24

約数和(自身を含む): 1219680

約数和(自身を除く): 668300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1451, 2902, 5804, 7255, 14510, 27569, 29020, 55138, 110276, 137845, 275690, 551380]

約数ペア:

[(1, 551380), (2, 275690), (4, 137845), (5, 110276), (10, 55138), (19, 29020), (20, 27569), (38, 14510), (76, 7255), (95, 5804), (190, 2902), (380, 1451)]