28221875

素因数分解:

$5^5\times {\mathrm{11}}^1\times {\mathrm{821}}^1$

素因数の和:857

約数の個数: 24

約数和(自身を含む): 38528784

約数和(自身を除く): 10306909

約数列:

[1, 5, 11, 25, 55, 125, 275, 625, 821, 1375, 3125, 4105, 6875, 9031, 20525, 34375, 45155, 102625, 225775, 513125, 1128875, 2565625, 5644375, 28221875]

約数ペア:

[(1, 28221875), (5, 5644375), (11, 2565625), (25, 1128875), (55, 513125), (125, 225775), (275, 102625), (625, 45155), (821, 34375), (1375, 20525), (3125, 9031), (4105, 6875)]