81262225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{2711}}^1$

素因数の和:2841

約数の個数: 24

約数和(自身を含む): 110975040

約数和(自身を除く): 29712815

約数列:

[1, 5, 11, 25, 55, 109, 275, 545, 1199, 2711, 2725, 5995, 13555, 29821, 29975, 67775, 149105, 295499, 745525, 1477495, 3250489, 7387475, 16252445, 81262225]

約数ペア:

[(1, 81262225), (5, 16252445), (11, 7387475), (25, 3250489), (55, 1477495), (109, 745525), (275, 295499), (545, 149105), (1199, 67775), (2711, 29975), (2725, 29821), (5995, 13555)]