27720741875

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{6379}}^1$

素因数の和:6825

約数の個数: 40

約数和(自身を含む): 36772916400

約数和(自身を除く): 9052174525

約数列:

[1, 5, 17, 25, 85, 125, 409, 425, 625, 2045, 2125, 6379, 6953, 10225, 10625, 31895, 34765, 51125, 108443, 159475, 173825, 255625, 542215, 797375, 869125, 2609011, 2711075, 3986875, 4345625, 13045055, 13555375, 44353187, 65225275, 67776875, 221765935, 326126375, 1108829675, 1630631875, 5544148375, 27720741875]

約数ペア:

[(1, 27720741875), (5, 5544148375), (17, 1630631875), (25, 1108829675), (85, 326126375), (125, 221765935), (409, 67776875), (425, 65225275), (625, 44353187), (2045, 13555375), (2125, 13045055), (6379, 4345625), (6953, 3986875), (10225, 2711075), (10625, 2609011), (31895, 869125), (34765, 797375), (51125, 542215), (108443, 255625), (159475, 173825)]