28251380

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{4513}}^1$

素因数の和:4835

約数の個数: 24

約数和(自身を含む): 59530632

約数和(自身を除く): 31279252

約数列:

[1, 2, 4, 5, 10, 20, 313, 626, 1252, 1565, 3130, 4513, 6260, 9026, 18052, 22565, 45130, 90260, 1412569, 2825138, 5650276, 7062845, 14125690, 28251380]

約数ペア:

[(1, 28251380), (2, 14125690), (4, 7062845), (5, 5650276), (10, 2825138), (20, 1412569), (313, 90260), (626, 45130), (1252, 22565), (1565, 18052), (3130, 9026), (4513, 6260)]