20664060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{479}}^1\times {\mathrm{719}}^1$

素因数の和:1210

約数の個数: 48

約数和(自身を含む): 58060800

約数和(自身を除く): 37396740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 479, 719, 958, 1437, 1438, 1916, 2157, 2395, 2874, 2876, 3595, 4314, 4790, 5748, 7185, 7190, 8628, 9580, 10785, 14370, 14380, 21570, 28740, 43140, 344401, 688802, 1033203, 1377604, 1722005, 2066406, 3444010, 4132812, 5166015, 6888020, 10332030, 20664060]

約数ペア:

[(1, 20664060), (2, 10332030), (3, 6888020), (4, 5166015), (5, 4132812), (6, 3444010), (10, 2066406), (12, 1722005), (15, 1377604), (20, 1033203), (30, 688802), (60, 344401), (479, 43140), (719, 28740), (958, 21570), (1437, 14380), (1438, 14370), (1916, 10785), (2157, 9580), (2395, 8628), (2874, 7190), (2876, 7185), (3595, 5748), (4314, 4790)]