28528660

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{5683}}^1$

素因数の和:5943

約数の個数: 24

約数和(自身を含む): 60159456

約数和(自身を除く): 31630796

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 5683, 11366, 22732, 28415, 56830, 113660, 1426433, 2852866, 5705732, 7132165, 14264330, 28528660]

約数ペア:

[(1, 28528660), (2, 14264330), (4, 7132165), (5, 5705732), (10, 2852866), (20, 1426433), (251, 113660), (502, 56830), (1004, 28415), (1255, 22732), (2510, 11366), (5020, 5683)]