42788440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{24877}}^1$

素因数の和:24931

約数の個数: 32

約数和(自身を含む): 98516880

約数和(自身を除く): 55728440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 24877, 49754, 99508, 124385, 199016, 248770, 497540, 995080, 1069711, 2139422, 4278844, 5348555, 8557688, 10697110, 21394220, 42788440]

約数ペア:

[(1, 42788440), (2, 21394220), (4, 10697110), (5, 8557688), (8, 5348555), (10, 4278844), (20, 2139422), (40, 1069711), (43, 995080), (86, 497540), (172, 248770), (215, 199016), (344, 124385), (430, 99508), (860, 49754), (1720, 24877)]