20225380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1979}}^1$

素因数の和:2068

約数の個数: 48

約数和(自身を含む): 49230720

約数和(自身を除く): 29005340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1460, 1979, 2044, 2555, 3958, 5110, 7916, 9895, 10220, 13853, 19790, 27706, 39580, 55412, 69265, 138530, 144467, 277060, 288934, 577868, 722335, 1011269, 1444670, 2022538, 2889340, 4045076, 5056345, 10112690, 20225380]

約数ペア:

[(1, 20225380), (2, 10112690), (4, 5056345), (5, 4045076), (7, 2889340), (10, 2022538), (14, 1444670), (20, 1011269), (28, 722335), (35, 577868), (70, 288934), (73, 277060), (140, 144467), (146, 138530), (292, 69265), (365, 55412), (511, 39580), (730, 27706), (1022, 19790), (1460, 13853), (1979, 10220), (2044, 9895), (2555, 7916), (3958, 5110)]