81179240

素因数分解:

$2^3\times 5^1\times {\mathrm{1051}}^1\times {\mathrm{1931}}^1$

素因数の和:2993

約数の個数: 32

約数和(自身を含む): 182921760

約数和(自身を除く): 101742520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1051, 1931, 2102, 3862, 4204, 5255, 7724, 8408, 9655, 10510, 15448, 19310, 21020, 38620, 42040, 77240, 2029481, 4058962, 8117924, 10147405, 16235848, 20294810, 40589620, 81179240]

約数ペア:

[(1, 81179240), (2, 40589620), (4, 20294810), (5, 16235848), (8, 10147405), (10, 8117924), (20, 4058962), (40, 2029481), (1051, 77240), (1931, 42040), (2102, 38620), (3862, 21020), (4204, 19310), (5255, 15448), (7724, 10510), (8408, 9655)]