210660440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{122477}}^1$

素因数の和:122531

約数の個数: 32

約数和(自身を含む): 485012880

約数和(自身を除く): 274352440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 122477, 244954, 489908, 612385, 979816, 1224770, 2449540, 4899080, 5266511, 10533022, 21066044, 26332555, 42132088, 52665110, 105330220, 210660440]

約数ペア:

[(1, 210660440), (2, 105330220), (4, 52665110), (5, 42132088), (8, 26332555), (10, 21066044), (20, 10533022), (40, 5266511), (43, 4899080), (86, 2449540), (172, 1224770), (215, 979816), (344, 612385), (430, 489908), (860, 244954), (1720, 122477)]