20695140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{114973}}^1$

素因数の和:114988

約数の個数: 36

約数和(自身を含む): 62775804

約数和(自身を除く): 42080664

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 114973, 229946, 344919, 459892, 574865, 689838, 1034757, 1149730, 1379676, 1724595, 2069514, 2299460, 3449190, 4139028, 5173785, 6898380, 10347570, 20695140]

約数ペア:

[(1, 20695140), (2, 10347570), (3, 6898380), (4, 5173785), (5, 4139028), (6, 3449190), (9, 2299460), (10, 2069514), (12, 1724595), (15, 1379676), (18, 1149730), (20, 1034757), (30, 689838), (36, 574865), (45, 459892), (60, 344919), (90, 229946), (180, 114973)]