25657220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{269}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 57153600

約数和(自身を除く): 31496380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 251, 269, 380, 502, 538, 1004, 1076, 1255, 1345, 2510, 2690, 4769, 5020, 5111, 5380, 9538, 10222, 19076, 20444, 23845, 25555, 47690, 51110, 67519, 95380, 102220, 135038, 270076, 337595, 675190, 1282861, 1350380, 2565722, 5131444, 6414305, 12828610, 25657220]

約数ペア:

[(1, 25657220), (2, 12828610), (4, 6414305), (5, 5131444), (10, 2565722), (19, 1350380), (20, 1282861), (38, 675190), (76, 337595), (95, 270076), (190, 135038), (251, 102220), (269, 95380), (380, 67519), (502, 51110), (538, 47690), (1004, 25555), (1076, 23845), (1255, 20444), (1345, 19076), (2510, 10222), (2690, 9538), (4769, 5380), (5020, 5111)]