398807402

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1\times {\mathrm{919}}^1$

素因数の和:1290

約数の個数: 32

約数和(自身を含む): 692428800

約数和(自身を除く): 293621398

約数列:

[1, 2, 7, 14, 139, 223, 278, 446, 919, 973, 1561, 1838, 1946, 3122, 6433, 12866, 30997, 61994, 127741, 204937, 216979, 255482, 409874, 433958, 894187, 1434559, 1788374, 2869118, 28486243, 56972486, 199403701, 398807402]

約数ペア:

[(1, 398807402), (2, 199403701), (7, 56972486), (14, 28486243), (139, 2869118), (223, 1788374), (278, 1434559), (446, 894187), (919, 433958), (973, 409874), (1561, 255482), (1838, 216979), (1946, 204937), (3122, 127741), (6433, 61994), (12866, 30997)]