18928280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67601}}^1$

素因数の和:67619

約数の個数: 32

約数和(自身を含む): 48673440

約数和(自身を除く): 29745160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 67601, 135202, 270404, 338005, 473207, 540808, 676010, 946414, 1352020, 1892828, 2366035, 2704040, 3785656, 4732070, 9464140, 18928280]

約数ペア:

[(1, 18928280), (2, 9464140), (4, 4732070), (5, 3785656), (7, 2704040), (8, 2366035), (10, 1892828), (14, 1352020), (20, 946414), (28, 676010), (35, 540808), (40, 473207), (56, 338005), (70, 270404), (140, 135202), (280, 67601)]