13771760

素因数分解:

$2^4\times 5^1\times {\mathrm{172147}}^1$

素因数の和:172160

約数の個数: 20

約数和(自身を含む): 32019528

約数和(自身を除く): 18247768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 172147, 344294, 688588, 860735, 1377176, 1721470, 2754352, 3442940, 6885880, 13771760]

約数ペア:

[(1, 13771760), (2, 6885880), (4, 3442940), (5, 2754352), (8, 1721470), (10, 1377176), (16, 860735), (20, 688588), (40, 344294), (80, 172147)]