261798515

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{1087}}^1$

素因数の和:1283

約数の個数: 32

約数和(自身を含む): 357212160

約数和(自身を除く): 95413645

約数列:

[1, 5, 11, 29, 55, 145, 151, 319, 755, 1087, 1595, 1661, 4379, 5435, 8305, 11957, 21895, 31523, 48169, 59785, 157615, 164137, 240845, 346753, 820685, 1733765, 1805507, 4759973, 9027535, 23799865, 52359703, 261798515]

約数ペア:

[(1, 261798515), (5, 52359703), (11, 23799865), (29, 9027535), (55, 4759973), (145, 1805507), (151, 1733765), (319, 820685), (755, 346753), (1087, 240845), (1595, 164137), (1661, 157615), (4379, 59785), (5435, 48169), (8305, 31523), (11957, 21895)]