20091940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{337}}^1$

素因数の和:628

約数の個数: 48

約数和(自身を含む): 46335744

約数和(自身を除く): 26243804

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 271, 337, 542, 674, 1084, 1348, 1355, 1685, 2710, 2981, 3370, 3707, 5420, 5962, 6740, 7414, 11924, 14828, 14905, 18535, 29810, 37070, 59620, 74140, 91327, 182654, 365308, 456635, 913270, 1004597, 1826540, 2009194, 4018388, 5022985, 10045970, 20091940]

約数ペア:

[(1, 20091940), (2, 10045970), (4, 5022985), (5, 4018388), (10, 2009194), (11, 1826540), (20, 1004597), (22, 913270), (44, 456635), (55, 365308), (110, 182654), (220, 91327), (271, 74140), (337, 59620), (542, 37070), (674, 29810), (1084, 18535), (1348, 14905), (1355, 14828), (1685, 11924), (2710, 7414), (2981, 6740), (3370, 5962), (3707, 5420)]