1691777980

素因数分解:

$2^2\times 5^1\times {\mathrm{1993}}^1\times {\mathrm{42443}}^1$

素因数の和:44445

約数の個数: 24

約数和(自身を含む): 3554600112

約数和(自身を除く): 1862822132

約数列:

[1, 2, 4, 5, 10, 20, 1993, 3986, 7972, 9965, 19930, 39860, 42443, 84886, 169772, 212215, 424430, 848860, 84588899, 169177798, 338355596, 422944495, 845888990, 1691777980]

約数ペア:

[(1, 1691777980), (2, 845888990), (4, 422944495), (5, 338355596), (10, 169177798), (20, 84588899), (1993, 848860), (3986, 424430), (7972, 212215), (9965, 169772), (19930, 84886), (39860, 42443)]