81843760

素因数分解:

$2^4\times 5^1\times {\mathrm{1023047}}^1$

素因数の和:1023060

約数の個数: 20

約数和(自身を含む): 190286928

約数和(自身を除く): 108443168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1023047, 2046094, 4092188, 5115235, 8184376, 10230470, 16368752, 20460940, 40921880, 81843760]

約数ペア:

[(1, 81843760), (2, 40921880), (4, 20460940), (5, 16368752), (8, 10230470), (10, 8184376), (16, 5115235), (20, 4092188), (40, 2046094), (80, 1023047)]