205121785

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{128603}}^1$

素因数の和:128648

約数の個数: 16

約数和(自身を含む): 277784640

約数和(自身を除く): 72662855

約数列:

[1, 5, 11, 29, 55, 145, 319, 1595, 128603, 643015, 1414633, 3729487, 7073165, 18647435, 41024357, 205121785]

約数ペア:

[(1, 205121785), (5, 41024357), (11, 18647435), (29, 7073165), (55, 3729487), (145, 1414633), (319, 643015), (1595, 128603)]