20199756400

素因数分解:

$2^4\times 5^2\times {\mathrm{127}}^1\times {\mathrm{397633}}^1$

素因数の和:397778

約数の個数: 60

約数和(自身を含む): 48912163072

約数和(自身を除く): 28712406672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 127, 200, 254, 400, 508, 635, 1016, 1270, 2032, 2540, 3175, 5080, 6350, 10160, 12700, 25400, 50800, 397633, 795266, 1590532, 1988165, 3181064, 3976330, 6362128, 7952660, 9940825, 15905320, 19881650, 31810640, 39763300, 50499391, 79526600, 100998782, 159053200, 201997564, 252496955, 403995128, 504993910, 807990256, 1009987820, 1262484775, 2019975640, 2524969550, 4039951280, 5049939100, 10099878200, 20199756400]

約数ペア:

[(1, 20199756400), (2, 10099878200), (4, 5049939100), (5, 4039951280), (8, 2524969550), (10, 2019975640), (16, 1262484775), (20, 1009987820), (25, 807990256), (40, 504993910), (50, 403995128), (80, 252496955), (100, 201997564), (127, 159053200), (200, 100998782), (254, 79526600), (400, 50499391), (508, 39763300), (635, 31810640), (1016, 19881650), (1270, 15905320), (2032, 9940825), (2540, 7952660), (3175, 6362128), (5080, 3976330), (6350, 3181064), (10160, 1988165), (12700, 1590532), (25400, 795266), (50800, 397633)]