28030960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20611}}^1$

素因数の和:20641

約数の個数: 40

約数和(自身を含む): 69008976

約数和(自身を除く): 40978016

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 20611, 41222, 82444, 103055, 164888, 206110, 329776, 350387, 412220, 700774, 824440, 1401548, 1648880, 1751935, 2803096, 3503870, 5606192, 7007740, 14015480, 28030960]

約数ペア:

[(1, 28030960), (2, 14015480), (4, 7007740), (5, 5606192), (8, 3503870), (10, 2803096), (16, 1751935), (17, 1648880), (20, 1401548), (34, 824440), (40, 700774), (68, 412220), (80, 350387), (85, 329776), (136, 206110), (170, 164888), (272, 103055), (340, 82444), (680, 41222), (1360, 20611)]