20352740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1931}}^1$

素因数の和:1988

約数の個数: 48

約数和(自身を含む): 46738944

約数和(自身を除く): 26386204

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 62, 68, 85, 124, 155, 170, 310, 340, 527, 620, 1054, 1931, 2108, 2635, 3862, 5270, 7724, 9655, 10540, 19310, 32827, 38620, 59861, 65654, 119722, 131308, 164135, 239444, 299305, 328270, 598610, 656540, 1017637, 1197220, 2035274, 4070548, 5088185, 10176370, 20352740]

約数ペア:

[(1, 20352740), (2, 10176370), (4, 5088185), (5, 4070548), (10, 2035274), (17, 1197220), (20, 1017637), (31, 656540), (34, 598610), (62, 328270), (68, 299305), (85, 239444), (124, 164135), (155, 131308), (170, 119722), (310, 65654), (340, 59861), (527, 38620), (620, 32827), (1054, 19310), (1931, 10540), (2108, 9655), (2635, 7724), (3862, 5270)]