2760391640

素因数分解:

$2^3\times 5^1\times {\mathrm{69009791}}^1$

素因数の和:69009802

約数の個数: 16

約数和(自身を含む): 6210881280

約数和(自身を除く): 3450489640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 69009791, 138019582, 276039164, 345048955, 552078328, 690097910, 1380195820, 2760391640]

約数ペア:

[(1, 2760391640), (2, 1380195820), (4, 690097910), (5, 552078328), (8, 345048955), (10, 276039164), (20, 138019582), (40, 69009791)]