20259562760

素因数分解:

$2^3\times 5^1\times {\mathrm{541}}^1\times {\mathrm{647}}^1\times {\mathrm{1447}}^1$

素因数の和:2646

約数の個数: 64

約数和(自身を含む): 45770469120

約数和(自身を除く): 25510906360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 541, 647, 1082, 1294, 1447, 2164, 2588, 2705, 2894, 3235, 4328, 5176, 5410, 5788, 6470, 7235, 10820, 11576, 12940, 14470, 21640, 25880, 28940, 57880, 350027, 700054, 782827, 936209, 1400108, 1565654, 1750135, 1872418, 2800216, 3131308, 3500270, 3744836, 3914135, 4681045, 6262616, 7000540, 7489672, 7828270, 9362090, 14001080, 15656540, 18724180, 31313080, 37448360, 506489069, 1012978138, 2025956276, 2532445345, 4051912552, 5064890690, 10129781380, 20259562760]

約数ペア:

[(1, 20259562760), (2, 10129781380), (4, 5064890690), (5, 4051912552), (8, 2532445345), (10, 2025956276), (20, 1012978138), (40, 506489069), (541, 37448360), (647, 31313080), (1082, 18724180), (1294, 15656540), (1447, 14001080), (2164, 9362090), (2588, 7828270), (2705, 7489672), (2894, 7000540), (3235, 6262616), (4328, 4681045), (5176, 3914135), (5410, 3744836), (5788, 3500270), (6470, 3131308), (7235, 2800216), (10820, 1872418), (11576, 1750135), (12940, 1565654), (14470, 1400108), (21640, 936209), (25880, 782827), (28940, 700054), (57880, 350027)]