205651325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{241}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 291677760

約数和(自身を除く): 86026435

約数列:

[1, 5, 11, 25, 29, 55, 107, 145, 241, 275, 319, 535, 725, 1177, 1205, 1595, 2651, 2675, 3103, 5885, 6025, 6989, 7975, 13255, 15515, 25787, 29425, 34133, 34945, 66275, 76879, 77575, 128935, 170665, 174725, 283657, 384395, 644675, 747823, 853325, 1418285, 1921975, 3739115, 7091425, 8226053, 18695575, 41130265, 205651325]

約数ペア:

[(1, 205651325), (5, 41130265), (11, 18695575), (25, 8226053), (29, 7091425), (55, 3739115), (107, 1921975), (145, 1418285), (241, 853325), (275, 747823), (319, 644675), (535, 384395), (725, 283657), (1177, 174725), (1205, 170665), (1595, 128935), (2651, 77575), (2675, 76879), (3103, 66275), (5885, 34945), (6025, 34133), (6989, 29425), (7975, 25787), (13255, 15515)]