1987990136

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{778993}}^1$

素因数の和:779039

約数の個数: 32

約数和(自身を含む): 4206567600

約数和(自身を除く): 2218577464

約数列:

[1, 2, 4, 8, 11, 22, 29, 44, 58, 88, 116, 232, 319, 638, 1276, 2552, 778993, 1557986, 3115972, 6231944, 8568923, 17137846, 22590797, 34275692, 45181594, 68551384, 90363188, 180726376, 248498767, 496997534, 993995068, 1987990136]

約数ペア:

[(1, 1987990136), (2, 993995068), (4, 496997534), (8, 248498767), (11, 180726376), (22, 90363188), (29, 68551384), (44, 45181594), (58, 34275692), (88, 22590797), (116, 17137846), (232, 8568923), (319, 6231944), (638, 3115972), (1276, 1557986), (2552, 778993)]