28663480

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1787}}^1$

素因数の和:2199

約数の個数: 32

約数和(自身を含む): 64689840

約数和(自身を除く): 36026360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 1787, 2005, 3208, 3574, 4010, 7148, 8020, 8935, 14296, 16040, 17870, 35740, 71480, 716587, 1433174, 2866348, 3582935, 5732696, 7165870, 14331740, 28663480]

約数ペア:

[(1, 28663480), (2, 14331740), (4, 7165870), (5, 5732696), (8, 3582935), (10, 2866348), (20, 1433174), (40, 716587), (401, 71480), (802, 35740), (1604, 17870), (1787, 16040), (2005, 14296), (3208, 8935), (3574, 8020), (4010, 7148)]