20420930

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{1051}}^1$

素因数の和:1154

約数の個数: 32

約数和(自身を含む): 38629440

約数和(自身を除く): 18208510

約数列:

[1, 2, 5, 10, 29, 58, 67, 134, 145, 290, 335, 670, 1051, 1943, 2102, 3886, 5255, 9715, 10510, 19430, 30479, 60958, 70417, 140834, 152395, 304790, 352085, 704170, 2042093, 4084186, 10210465, 20420930]

約数ペア:

[(1, 20420930), (2, 10210465), (5, 4084186), (10, 2042093), (29, 704170), (58, 352085), (67, 304790), (134, 152395), (145, 140834), (290, 70417), (335, 60958), (670, 30479), (1051, 19430), (1943, 10510), (2102, 9715), (3886, 5255)]