81464788

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{1777}}^1$

素因数の和:2011

約数の個数: 24

約数和(自身を含む): 145518632

約数和(自身を除く): 64053844

約数列:

[1, 2, 4, 73, 146, 157, 292, 314, 628, 1777, 3554, 7108, 11461, 22922, 45844, 129721, 259442, 278989, 518884, 557978, 1115956, 20366197, 40732394, 81464788]

約数ペア:

[(1, 81464788), (2, 40732394), (4, 20366197), (73, 1115956), (146, 557978), (157, 518884), (292, 278989), (314, 259442), (628, 129721), (1777, 45844), (3554, 22922), (7108, 11461)]