28605920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{25541}}^1$

素因数の和:25563

約数の個数: 48

約数和(自身を含む): 77239008

約数和(自身を除く): 48633088

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 25541, 51082, 102164, 127705, 178787, 204328, 255410, 357574, 408656, 510820, 715148, 817312, 893935, 1021640, 1430296, 1787870, 2043280, 2860592, 3575740, 4086560, 5721184, 7151480, 14302960, 28605920]

約数ペア:

[(1, 28605920), (2, 14302960), (4, 7151480), (5, 5721184), (7, 4086560), (8, 3575740), (10, 2860592), (14, 2043280), (16, 1787870), (20, 1430296), (28, 1021640), (32, 893935), (35, 817312), (40, 715148), (56, 510820), (70, 408656), (80, 357574), (112, 255410), (140, 204328), (160, 178787), (224, 127705), (280, 102164), (560, 51082), (1120, 25541)]