20701660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2207}}^1$

素因数の和:2290

約数の個数: 48

約数和(自身を含む): 50448384

約数和(自身を除く): 29746724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1340, 1876, 2207, 2345, 4414, 4690, 8828, 9380, 11035, 15449, 22070, 30898, 44140, 61796, 77245, 147869, 154490, 295738, 308980, 591476, 739345, 1035083, 1478690, 2070166, 2957380, 4140332, 5175415, 10350830, 20701660]

約数ペア:

[(1, 20701660), (2, 10350830), (4, 5175415), (5, 4140332), (7, 2957380), (10, 2070166), (14, 1478690), (20, 1035083), (28, 739345), (35, 591476), (67, 308980), (70, 295738), (134, 154490), (140, 147869), (268, 77245), (335, 61796), (469, 44140), (670, 30898), (938, 22070), (1340, 15449), (1876, 11035), (2207, 9380), (2345, 8828), (4414, 4690)]