31247740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{719}}^1$

素因数の和:822

約数の個数: 48

約数和(自身を含む): 68584320

約数和(自身を除く): 37336580

約数列:

[1, 2, 4, 5, 10, 20, 41, 53, 82, 106, 164, 205, 212, 265, 410, 530, 719, 820, 1060, 1438, 2173, 2876, 3595, 4346, 7190, 8692, 10865, 14380, 21730, 29479, 38107, 43460, 58958, 76214, 117916, 147395, 152428, 190535, 294790, 381070, 589580, 762140, 1562387, 3124774, 6249548, 7811935, 15623870, 31247740]

約数ペア:

[(1, 31247740), (2, 15623870), (4, 7811935), (5, 6249548), (10, 3124774), (20, 1562387), (41, 762140), (53, 589580), (82, 381070), (106, 294790), (164, 190535), (205, 152428), (212, 147395), (265, 117916), (410, 76214), (530, 58958), (719, 43460), (820, 38107), (1060, 29479), (1438, 21730), (2173, 14380), (2876, 10865), (3595, 8692), (4346, 7190)]