20907160

素因数分解:

$2^3\times 5^1\times {\mathrm{522679}}^1$

素因数の和:522690

約数の個数: 16

約数和(自身を含む): 47041200

約数和(自身を除く): 26134040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 522679, 1045358, 2090716, 2613395, 4181432, 5226790, 10453580, 20907160]

約数ペア:

[(1, 20907160), (2, 10453580), (4, 5226790), (5, 4181432), (8, 2613395), (10, 2090716), (20, 1045358), (40, 522679)]