72116440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163901}}^1$

素因数の和:163923

約数の個数: 32

約数和(自身を含む): 177014160

約数和(自身を除く): 104897720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 163901, 327802, 655604, 819505, 1311208, 1639010, 1802911, 3278020, 3605822, 6556040, 7211644, 9014555, 14423288, 18029110, 36058220, 72116440]

約数ペア:

[(1, 72116440), (2, 36058220), (4, 18029110), (5, 14423288), (8, 9014555), (10, 7211644), (11, 6556040), (20, 3605822), (22, 3278020), (40, 1802911), (44, 1639010), (55, 1311208), (88, 819505), (110, 655604), (220, 327802), (440, 163901)]