81322175

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{2713}}^1$

素因数の和:2843

約数の個数: 24

約数和(自身を含む): 111056880

約数和(自身を除く): 29734705

約数列:

[1, 5, 11, 25, 55, 109, 275, 545, 1199, 2713, 2725, 5995, 13565, 29843, 29975, 67825, 149215, 295717, 746075, 1478585, 3252887, 7392925, 16264435, 81322175]

約数ペア:

[(1, 81322175), (5, 16264435), (11, 7392925), (25, 3252887), (55, 1478585), (109, 746075), (275, 295717), (545, 149215), (1199, 67825), (2713, 29975), (2725, 29843), (5995, 13565)]