20749290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1069}}^1$

素因数の和:1726

約数の個数: 32

約数和(自身を含む): 49921920

約数和(自身を除く): 29172630

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 647, 1069, 1294, 1941, 2138, 3207, 3235, 3882, 5345, 6414, 6470, 9705, 10690, 16035, 19410, 32070, 691643, 1383286, 2074929, 3458215, 4149858, 6916430, 10374645, 20749290]

約数ペア:

[(1, 20749290), (2, 10374645), (3, 6916430), (5, 4149858), (6, 3458215), (10, 2074929), (15, 1383286), (30, 691643), (647, 32070), (1069, 19410), (1294, 16035), (1941, 10690), (2138, 9705), (3207, 6470), (3235, 6414), (3882, 5345)]