28145440

素因数分解:

$2^5\times 5^1\times {\mathrm{175909}}^1$

素因数の和:175924

約数の個数: 24

約数和(自身を含む): 66493980

約数和(自身を除く): 38348540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 175909, 351818, 703636, 879545, 1407272, 1759090, 2814544, 3518180, 5629088, 7036360, 14072720, 28145440]

約数ペア:

[(1, 28145440), (2, 14072720), (4, 7036360), (5, 5629088), (8, 3518180), (10, 2814544), (16, 1759090), (20, 1407272), (32, 879545), (40, 703636), (80, 351818), (160, 175909)]