17381720

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{1231}}^1$

素因数の和:1595

約数の個数: 32

約数和(自身を含む): 39251520

約数和(自身を除く): 21869800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1231, 1412, 1765, 2462, 2824, 3530, 4924, 6155, 7060, 9848, 12310, 14120, 24620, 49240, 434543, 869086, 1738172, 2172715, 3476344, 4345430, 8690860, 17381720]

約数ペア:

[(1, 17381720), (2, 8690860), (4, 4345430), (5, 3476344), (8, 2172715), (10, 1738172), (20, 869086), (40, 434543), (353, 49240), (706, 24620), (1231, 14120), (1412, 12310), (1765, 9848), (2462, 7060), (2824, 6155), (3530, 4924)]