18847940

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{20051}}^1$

素因数の和:20107

約数の個数: 24

約数和(自身を含む): 40424832

約数和(自身を除く): 21576892

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 20051, 40102, 80204, 100255, 200510, 401020, 942397, 1884794, 3769588, 4711985, 9423970, 18847940]

約数ペア:

[(1, 18847940), (2, 9423970), (4, 4711985), (5, 3769588), (10, 1884794), (20, 942397), (47, 401020), (94, 200510), (188, 100255), (235, 80204), (470, 40102), (940, 20051)]