81972340

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{57727}}^1$

素因数の和:57807

約数の個数: 24

約数和(自身を含む): 174569472

約数和(自身を除く): 92597132

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 57727, 115454, 230908, 288635, 577270, 1154540, 4098617, 8197234, 16394468, 20493085, 40986170, 81972340]

約数ペア:

[(1, 81972340), (2, 40986170), (4, 20493085), (5, 16394468), (10, 8197234), (20, 4098617), (71, 1154540), (142, 577270), (284, 288635), (355, 230908), (710, 115454), (1420, 57727)]