31148780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2549}}^1$

素因数の和:2618

約数の個数: 48

約数和(自身を含む): 71971200

約数和(自身を除く): 40822420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 940, 1222, 2444, 2549, 3055, 5098, 6110, 10196, 12220, 12745, 25490, 33137, 50980, 66274, 119803, 132548, 165685, 239606, 331370, 479212, 599015, 662740, 1198030, 1557439, 2396060, 3114878, 6229756, 7787195, 15574390, 31148780]

約数ペア:

[(1, 31148780), (2, 15574390), (4, 7787195), (5, 6229756), (10, 3114878), (13, 2396060), (20, 1557439), (26, 1198030), (47, 662740), (52, 599015), (65, 479212), (94, 331370), (130, 239606), (188, 165685), (235, 132548), (260, 119803), (470, 66274), (611, 50980), (940, 33137), (1222, 25490), (2444, 12745), (2549, 12220), (3055, 10196), (5098, 6110)]