399686575

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{733}}^1\times {\mathrm{1283}}^1$

素因数の和:2043

約数の個数: 24

約数和(自身を含む): 525890448

約数和(自身を除く): 126203873

約数列:

[1, 5, 17, 25, 85, 425, 733, 1283, 3665, 6415, 12461, 18325, 21811, 32075, 62305, 109055, 311525, 545275, 940439, 4702195, 15987463, 23510975, 79937315, 399686575]

約数ペア:

[(1, 399686575), (5, 79937315), (17, 23510975), (25, 15987463), (85, 4702195), (425, 940439), (733, 545275), (1283, 311525), (3665, 109055), (6415, 62305), (12461, 32075), (18325, 21811)]