18102820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47639}}^1$

素因数の和:47667

約数の個数: 24

約数和(自身を含む): 40017600

約数和(自身を除く): 21914780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 47639, 95278, 190556, 238195, 476390, 905141, 952780, 1810282, 3620564, 4525705, 9051410, 18102820]

約数ペア:

[(1, 18102820), (2, 9051410), (4, 4525705), (5, 3620564), (10, 1810282), (19, 952780), (20, 905141), (38, 476390), (76, 238195), (95, 190556), (190, 95278), (380, 47639)]