20854620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{115859}}^1$

素因数の和:115874

約数の個数: 36

約数和(自身を含む): 63259560

約数和(自身を除く): 42404940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 115859, 231718, 347577, 463436, 579295, 695154, 1042731, 1158590, 1390308, 1737885, 2085462, 2317180, 3475770, 4170924, 5213655, 6951540, 10427310, 20854620]

約数ペア:

[(1, 20854620), (2, 10427310), (3, 6951540), (4, 5213655), (5, 4170924), (6, 3475770), (9, 2317180), (10, 2085462), (12, 1737885), (15, 1390308), (18, 1158590), (20, 1042731), (30, 695154), (36, 579295), (45, 463436), (60, 347577), (90, 231718), (180, 115859)]