18416225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{283}}^1$

素因数の和:449

約数の個数: 24

約数和(自身を含む): 24299040

約数和(自身を除く): 5882815

約数列:

[1, 5, 19, 25, 95, 137, 283, 475, 685, 1415, 2603, 3425, 5377, 7075, 13015, 26885, 38771, 65075, 134425, 193855, 736649, 969275, 3683245, 18416225]

約数ペア:

[(1, 18416225), (5, 3683245), (19, 969275), (25, 736649), (95, 193855), (137, 134425), (283, 65075), (475, 38771), (685, 26885), (1415, 13015), (2603, 7075), (3425, 5377)]