388965724

素因数分解:

$2^2\times 7^2\times {\mathrm{131}}^1\times {\mathrm{15149}}^1$

素因数の和:15298

約数の個数: 36

約数和(自身を含む): 797920200

約数和(自身を除く): 408954476

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 131, 196, 262, 524, 917, 1834, 3668, 6419, 12838, 15149, 25676, 30298, 60596, 106043, 212086, 424172, 742301, 1484602, 1984519, 2969204, 3969038, 7938076, 13891633, 27783266, 55566532, 97241431, 194482862, 388965724]

約数ペア:

[(1, 388965724), (2, 194482862), (4, 97241431), (7, 55566532), (14, 27783266), (28, 13891633), (49, 7938076), (98, 3969038), (131, 2969204), (196, 1984519), (262, 1484602), (524, 742301), (917, 424172), (1834, 212086), (3668, 106043), (6419, 60596), (12838, 30298), (15149, 25676)]