20157712685

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{50021}}^1$

素因数の和:50485

約数の個数: 32

約数和(自身を含む): 28005917184

約数和(自身を除く): 7848204499

約数列:

[1, 5, 11, 17, 55, 85, 187, 431, 935, 2155, 4741, 7327, 23705, 36635, 50021, 80597, 250105, 402985, 550231, 850357, 2751155, 4251785, 9353927, 21559051, 46769635, 107795255, 237149561, 366503867, 1185747805, 1832519335, 4031542537, 20157712685]

約数ペア:

[(1, 20157712685), (5, 4031542537), (11, 1832519335), (17, 1185747805), (55, 366503867), (85, 237149561), (187, 107795255), (431, 46769635), (935, 21559051), (2155, 9353927), (4741, 4251785), (7327, 2751155), (23705, 850357), (36635, 550231), (50021, 402985), (80597, 250105)]