639896530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{54091}}^1$

素因数の和:54131

約数の個数: 48

約数和(自身を含む): 1425432384

約数和(自身を除く): 785535854

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 169, 182, 338, 455, 845, 910, 1183, 1690, 2366, 5915, 11830, 54091, 108182, 270455, 378637, 540910, 703183, 757274, 1406366, 1893185, 3515915, 3786370, 4922281, 7031830, 9141379, 9844562, 18282758, 24611405, 45706895, 49222810, 63989653, 91413790, 127979306, 319948265, 639896530]

約数ペア:

[(1, 639896530), (2, 319948265), (5, 127979306), (7, 91413790), (10, 63989653), (13, 49222810), (14, 45706895), (26, 24611405), (35, 18282758), (65, 9844562), (70, 9141379), (91, 7031830), (130, 4922281), (169, 3786370), (182, 3515915), (338, 1893185), (455, 1406366), (845, 757274), (910, 703183), (1183, 540910), (1690, 378637), (2366, 270455), (5915, 108182), (11830, 54091)]