668879276

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1\times {\mathrm{769}}^1$

素因数の和:1218

約数の個数: 48

約数和(自身を含む): 1294893600

約数和(自身を除く): 626014324

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 172, 389, 559, 769, 778, 1118, 1538, 1556, 2236, 3076, 5057, 9997, 10114, 16727, 19994, 20228, 33067, 33454, 39988, 66134, 66908, 132268, 217451, 299141, 429871, 434902, 598282, 859742, 869804, 1196564, 1719484, 3888833, 7777666, 12863063, 15555332, 25726126, 51452252, 167219819, 334439638, 668879276]

約数ペア:

[(1, 668879276), (2, 334439638), (4, 167219819), (13, 51452252), (26, 25726126), (43, 15555332), (52, 12863063), (86, 7777666), (172, 3888833), (389, 1719484), (559, 1196564), (769, 869804), (778, 859742), (1118, 598282), (1538, 434902), (1556, 429871), (2236, 299141), (3076, 217451), (5057, 132268), (9997, 66908), (10114, 66134), (16727, 39988), (19994, 33454), (20228, 33067)]