2000998940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{997}}^1\times {\mathrm{5903}}^1$

素因数の和:6926

約数の個数: 48

約数和(自身を含む): 4454497152

約数和(自身を除く): 2453498212

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 997, 1994, 3988, 4985, 5903, 9970, 11806, 16949, 19940, 23612, 29515, 33898, 59030, 67796, 84745, 100351, 118060, 169490, 200702, 338980, 401404, 501755, 1003510, 2007020, 5885291, 11770582, 23541164, 29426455, 58852910, 100049947, 117705820, 200099894, 400199788, 500249735, 1000499470, 2000998940]

約数ペア:

[(1, 2000998940), (2, 1000499470), (4, 500249735), (5, 400199788), (10, 200099894), (17, 117705820), (20, 100049947), (34, 58852910), (68, 29426455), (85, 23541164), (170, 11770582), (340, 5885291), (997, 2007020), (1994, 1003510), (3988, 501755), (4985, 401404), (5903, 338980), (9970, 200702), (11806, 169490), (16949, 118060), (19940, 100351), (23612, 84745), (29515, 67796), (33898, 59030)]