20591590

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{2053}}^1$

素因数の和:2136

約数の個数: 32

約数和(自身を含む): 39929760

約数和(自身を除く): 19338170

約数列:

[1, 2, 5, 10, 17, 34, 59, 85, 118, 170, 295, 590, 1003, 2006, 2053, 4106, 5015, 10030, 10265, 20530, 34901, 69802, 121127, 174505, 242254, 349010, 605635, 1211270, 2059159, 4118318, 10295795, 20591590]

約数ペア:

[(1, 20591590), (2, 10295795), (5, 4118318), (10, 2059159), (17, 1211270), (34, 605635), (59, 349010), (85, 242254), (118, 174505), (170, 121127), (295, 69802), (590, 34901), (1003, 20530), (2006, 10265), (2053, 10030), (4106, 5015)]