20527580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{293}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 45045504

約数和(自身を除く): 24517924

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 113, 124, 155, 226, 293, 310, 452, 565, 586, 620, 1130, 1172, 1465, 2260, 2930, 3503, 5860, 7006, 9083, 14012, 17515, 18166, 33109, 35030, 36332, 45415, 66218, 70060, 90830, 132436, 165545, 181660, 331090, 662180, 1026379, 2052758, 4105516, 5131895, 10263790, 20527580]

約数ペア:

[(1, 20527580), (2, 10263790), (4, 5131895), (5, 4105516), (10, 2052758), (20, 1026379), (31, 662180), (62, 331090), (113, 181660), (124, 165545), (155, 132436), (226, 90830), (293, 70060), (310, 66218), (452, 45415), (565, 36332), (586, 35030), (620, 33109), (1130, 18166), (1172, 17515), (1465, 14012), (2260, 9083), (2930, 7006), (3503, 5860)]