20605140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{114473}}^1$

素因数の和:114488

約数の個数: 36

約数和(自身を含む): 62502804

約数和(自身を除く): 41897664

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 114473, 228946, 343419, 457892, 572365, 686838, 1030257, 1144730, 1373676, 1717095, 2060514, 2289460, 3434190, 4121028, 5151285, 6868380, 10302570, 20605140]

約数ペア:

[(1, 20605140), (2, 10302570), (3, 6868380), (4, 5151285), (5, 4121028), (6, 3434190), (9, 2289460), (10, 2060514), (12, 1717095), (15, 1373676), (18, 1144730), (20, 1030257), (30, 686838), (36, 572365), (45, 457892), (60, 343419), (90, 228946), (180, 114473)]