17256880

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1979}}^1$

素因数の和:2101

約数の個数: 40

約数和(自身を含む): 40510800

約数和(自身を除く): 23253920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 1979, 2180, 3958, 4360, 7916, 8720, 9895, 15832, 19790, 31664, 39580, 79160, 158320, 215711, 431422, 862844, 1078555, 1725688, 2157110, 3451376, 4314220, 8628440, 17256880]

約数ペア:

[(1, 17256880), (2, 8628440), (4, 4314220), (5, 3451376), (8, 2157110), (10, 1725688), (16, 1078555), (20, 862844), (40, 431422), (80, 215711), (109, 158320), (218, 79160), (436, 39580), (545, 31664), (872, 19790), (1090, 15832), (1744, 9895), (1979, 8720), (2180, 7916), (3958, 4360)]