643668004

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{5839}}^1$

素因数の和:6008

約数の個数: 48

約数和(自身を含む): 1339555840

約数和(自身を除く): 695887836

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 127, 217, 254, 434, 508, 868, 889, 1778, 3556, 3937, 5839, 7874, 11678, 15748, 23356, 27559, 40873, 55118, 81746, 110236, 163492, 181009, 362018, 724036, 741553, 1267063, 1483106, 2534126, 2966212, 5068252, 5190871, 10381742, 20763484, 22988143, 45976286, 91952572, 160917001, 321834002, 643668004]

約数ペア:

[(1, 643668004), (2, 321834002), (4, 160917001), (7, 91952572), (14, 45976286), (28, 22988143), (31, 20763484), (62, 10381742), (124, 5190871), (127, 5068252), (217, 2966212), (254, 2534126), (434, 1483106), (508, 1267063), (868, 741553), (889, 724036), (1778, 362018), (3556, 181009), (3937, 163492), (5839, 110236), (7874, 81746), (11678, 55118), (15748, 40873), (23356, 27559)]