890180

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{947}}^1$

素因数の和:1003

約数の個数: 24

約数和(自身を含む): 1911168

約数和(自身を除く): 1020988

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 947, 1894, 3788, 4735, 9470, 18940, 44509, 89018, 178036, 222545, 445090, 890180]

約数ペア:

[(1, 890180), (2, 445090), (4, 222545), (5, 178036), (10, 89018), (20, 44509), (47, 18940), (94, 9470), (188, 4735), (235, 3788), (470, 1894), (940, 947)]