20882615

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{457}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 29238720

約数和(自身を除く): 8356105

約数列:

[1, 5, 13, 19, 37, 65, 95, 185, 247, 457, 481, 703, 1235, 2285, 2405, 3515, 5941, 8683, 9139, 16909, 29705, 43415, 45695, 84545, 112879, 219817, 321271, 564395, 1099085, 1606355, 4176523, 20882615]

約数ペア:

[(1, 20882615), (5, 4176523), (13, 1606355), (19, 1099085), (37, 564395), (65, 321271), (95, 219817), (185, 112879), (247, 84545), (457, 45695), (481, 43415), (703, 29705), (1235, 16909), (2285, 9139), (2405, 8683), (3515, 5941)]