90005209

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{631}}^1$

素因数の和:757

約数の個数: 24

約数和(自身を含む): 108936576

約数和(自身を除く): 18931367

約数列:

[1, 7, 41, 49, 71, 287, 497, 631, 2009, 2911, 3479, 4417, 20377, 25871, 30919, 44801, 142639, 181097, 313607, 1267679, 1836841, 2195249, 12857887, 90005209]

約数ペア:

[(1, 90005209), (7, 12857887), (41, 2195249), (49, 1836841), (71, 1267679), (287, 313607), (497, 181097), (631, 142639), (2009, 44801), (2911, 30919), (3479, 25871), (4417, 20377)]