19725365

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 27216000

約数和(自身を除く): 7490635

約数列:

[1, 5, 11, 29, 55, 83, 145, 149, 319, 415, 745, 913, 1595, 1639, 2407, 4321, 4565, 8195, 12035, 12367, 21605, 26477, 47531, 61835, 132385, 136037, 237655, 358643, 680185, 1793215, 3945073, 19725365]

約数ペア:

[(1, 19725365), (5, 3945073), (11, 1793215), (29, 680185), (55, 358643), (83, 237655), (145, 136037), (149, 132385), (319, 61835), (415, 47531), (745, 26477), (913, 21605), (1595, 12367), (1639, 12035), (2407, 8195), (4321, 4565)]