18036280

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{2137}}^1$

素因数の和:2359

約数の個数: 32

約数和(自身を含む): 40793040

約数和(自身を除く): 22756760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 2137, 4220, 4274, 8440, 8548, 10685, 17096, 21370, 42740, 85480, 450907, 901814, 1803628, 2254535, 3607256, 4509070, 9018140, 18036280]

約数ペア:

[(1, 18036280), (2, 9018140), (4, 4509070), (5, 3607256), (8, 2254535), (10, 1803628), (20, 901814), (40, 450907), (211, 85480), (422, 42740), (844, 21370), (1055, 17096), (1688, 10685), (2110, 8548), (2137, 8440), (4220, 4274)]