79539280

素因数分解:

$2^4\times 5^1\times {\mathrm{994241}}^1$

素因数の和:994254

約数の個数: 20

約数和(自身を含む): 184929012

約数和(自身を除く): 105389732

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 994241, 1988482, 3976964, 4971205, 7953928, 9942410, 15907856, 19884820, 39769640, 79539280]

約数ペア:

[(1, 79539280), (2, 39769640), (4, 19884820), (5, 15907856), (8, 9942410), (10, 7953928), (16, 4971205), (20, 3976964), (40, 1988482), (80, 994241)]