1211660

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1289}}^1$

素因数の和:1345

約数の個数: 24

約数和(自身を含む): 2600640

約数和(自身を除く): 1388980

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 1289, 2578, 5156, 6445, 12890, 25780, 60583, 121166, 242332, 302915, 605830, 1211660]

約数ペア:

[(1, 1211660), (2, 605830), (4, 302915), (5, 242332), (10, 121166), (20, 60583), (47, 25780), (94, 12890), (188, 6445), (235, 5156), (470, 2578), (940, 1289)]