20916620

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{7019}}^1$

素因数の和:7177

約数の個数: 24

約数和(自身を含む): 44226000

約数和(自身を除く): 23309380

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 7019, 14038, 28076, 35095, 70190, 140380, 1045831, 2091662, 4183324, 5229155, 10458310, 20916620]

約数ペア:

[(1, 20916620), (2, 10458310), (4, 5229155), (5, 4183324), (10, 2091662), (20, 1045831), (149, 140380), (298, 70190), (596, 35095), (745, 28076), (1490, 14038), (2980, 7019)]