20124280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45737}}^1$

素因数の和:45759

約数の個数: 32

約数和(自身を含む): 49397040

約数和(自身を除く): 29272760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45737, 91474, 182948, 228685, 365896, 457370, 503107, 914740, 1006214, 1829480, 2012428, 2515535, 4024856, 5031070, 10062140, 20124280]

約数ペア:

[(1, 20124280), (2, 10062140), (4, 5031070), (5, 4024856), (8, 2515535), (10, 2012428), (11, 1829480), (20, 1006214), (22, 914740), (40, 503107), (44, 457370), (55, 365896), (88, 228685), (110, 182948), (220, 91474), (440, 45737)]