78634640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{140419}}^1$

素因数の和:140439

約数の個数: 40

約数和(自身を含む): 208944960

約数和(自身を除く): 130310320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 140419, 280838, 561676, 702095, 982933, 1123352, 1404190, 1965866, 2246704, 2808380, 3931732, 4914665, 5616760, 7863464, 9829330, 11233520, 15726928, 19658660, 39317320, 78634640]

約数ペア:

[(1, 78634640), (2, 39317320), (4, 19658660), (5, 15726928), (7, 11233520), (8, 9829330), (10, 7863464), (14, 5616760), (16, 4914665), (20, 3931732), (28, 2808380), (35, 2246704), (40, 1965866), (56, 1404190), (70, 1123352), (80, 982933), (112, 702095), (140, 561676), (280, 280838), (560, 140419)]