72154280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163987}}^1$

素因数の和:164009

約数の個数: 32

約数和(自身を含む): 177107040

約数和(自身を除く): 104952760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 163987, 327974, 655948, 819935, 1311896, 1639870, 1803857, 3279740, 3607714, 6559480, 7215428, 9019285, 14430856, 18038570, 36077140, 72154280]

約数ペア:

[(1, 72154280), (2, 36077140), (4, 18038570), (5, 14430856), (8, 9019285), (10, 7215428), (11, 6559480), (20, 3607714), (22, 3279740), (40, 1803857), (44, 1639870), (55, 1311896), (88, 819935), (110, 655948), (220, 327974), (440, 163987)]