20926280

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{11131}}^1$

素因数の和:11189

約数の個数: 32

約数和(自身を含む): 48090240

約数和(自身を除く): 27163960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 11131, 22262, 44524, 55655, 89048, 111310, 222620, 445240, 523157, 1046314, 2092628, 2615785, 4185256, 5231570, 10463140, 20926280]

約数ペア:

[(1, 20926280), (2, 10463140), (4, 5231570), (5, 4185256), (8, 2615785), (10, 2092628), (20, 1046314), (40, 523157), (47, 445240), (94, 222620), (188, 111310), (235, 89048), (376, 55655), (470, 44524), (940, 22262), (1880, 11131)]