31190220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{719}}^1$

素因数の和:975

約数の個数: 72

約数和(自身を含む): 95135040

約数和(自身を除く): 63944820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 241, 482, 719, 723, 964, 1205, 1438, 1446, 2157, 2169, 2410, 2876, 2892, 3595, 3615, 4314, 4338, 4820, 6471, 7190, 7230, 8628, 8676, 10785, 10845, 12942, 14380, 14460, 21570, 21690, 25884, 32355, 43140, 43380, 64710, 129420, 173279, 346558, 519837, 693116, 866395, 1039674, 1559511, 1732790, 2079348, 2599185, 3119022, 3465580, 5198370, 6238044, 7797555, 10396740, 15595110, 31190220]

約数ペア:

[(1, 31190220), (2, 15595110), (3, 10396740), (4, 7797555), (5, 6238044), (6, 5198370), (9, 3465580), (10, 3119022), (12, 2599185), (15, 2079348), (18, 1732790), (20, 1559511), (30, 1039674), (36, 866395), (45, 693116), (60, 519837), (90, 346558), (180, 173279), (241, 129420), (482, 64710), (719, 43380), (723, 43140), (964, 32355), (1205, 25884), (1438, 21690), (1446, 21570), (2157, 14460), (2169, 14380), (2410, 12942), (2876, 10845), (2892, 10785), (3595, 8676), (3615, 8628), (4314, 7230), (4338, 7190), (4820, 6471)]