80513540

素因数分解:

$2^2\times 5^1\times {\mathrm{1907}}^1\times {\mathrm{2111}}^1$

素因数の和:4027

約数の個数: 24

約数和(自身を含む): 169247232

約数和(自身を除く): 88733692

約数列:

[1, 2, 4, 5, 10, 20, 1907, 2111, 3814, 4222, 7628, 8444, 9535, 10555, 19070, 21110, 38140, 42220, 4025677, 8051354, 16102708, 20128385, 40256770, 80513540]

約数ペア:

[(1, 80513540), (2, 40256770), (4, 20128385), (5, 16102708), (10, 8051354), (20, 4025677), (1907, 42220), (2111, 38140), (3814, 21110), (4222, 19070), (7628, 10555), (8444, 9535)]