79328240

素因数分解:

$2^4\times 5^1\times {\mathrm{991603}}^1$

素因数の和:991616

約数の個数: 20

約数和(自身を含む): 184438344

約数和(自身を除く): 105110104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 991603, 1983206, 3966412, 4958015, 7932824, 9916030, 15865648, 19832060, 39664120, 79328240]

約数ペア:

[(1, 79328240), (2, 39664120), (4, 19832060), (5, 15865648), (8, 9916030), (10, 7932824), (16, 4958015), (20, 3966412), (40, 1983206), (80, 991603)]