77564780

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{27901}}^1$

素因数の和:28049

約数の個数: 24

約数和(自身を含む): 164063760

約数和(自身を除く): 86498980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 27901, 55802, 111604, 139505, 279010, 558020, 3878239, 7756478, 15512956, 19391195, 38782390, 77564780]

約数ペア:

[(1, 77564780), (2, 38782390), (4, 19391195), (5, 15512956), (10, 7756478), (20, 3878239), (139, 558020), (278, 279010), (556, 139505), (695, 111604), (1390, 55802), (2780, 27901)]