28016840

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{5039}}^1$

素因数の和:5189

約数の個数: 32

約数和(自身を含む): 63504000

約数和(自身を除く): 35487160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5039, 5560, 10078, 20156, 25195, 40312, 50390, 100780, 201560, 700421, 1400842, 2801684, 3502105, 5603368, 7004210, 14008420, 28016840]

約数ペア:

[(1, 28016840), (2, 14008420), (4, 7004210), (5, 5603368), (8, 3502105), (10, 2801684), (20, 1400842), (40, 700421), (139, 201560), (278, 100780), (556, 50390), (695, 40312), (1112, 25195), (1390, 20156), (2780, 10078), (5039, 5560)]