12821360

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1153}}^1$

素因数の和:1305

約数の個数: 40

約数和(自身を含む): 30050160

約数和(自身を除く): 17228800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1153, 1390, 2224, 2306, 2780, 4612, 5560, 5765, 9224, 11120, 11530, 18448, 23060, 46120, 92240, 160267, 320534, 641068, 801335, 1282136, 1602670, 2564272, 3205340, 6410680, 12821360]

約数ペア:

[(1, 12821360), (2, 6410680), (4, 3205340), (5, 2564272), (8, 1602670), (10, 1282136), (16, 801335), (20, 641068), (40, 320534), (80, 160267), (139, 92240), (278, 46120), (556, 23060), (695, 18448), (1112, 11530), (1153, 11120), (1390, 9224), (2224, 5765), (2306, 5560), (2780, 4612)]