1280820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{21347}}^1$

素因数の和:21359

約数の個数: 24

約数和(自身を含む): 3586464

約数和(自身を除く): 2305644

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 21347, 42694, 64041, 85388, 106735, 128082, 213470, 256164, 320205, 426940, 640410, 1280820]

約数ペア:

[(1, 1280820), (2, 640410), (3, 426940), (4, 320205), (5, 256164), (6, 213470), (10, 128082), (12, 106735), (15, 85388), (20, 64041), (30, 42694), (60, 21347)]