661193112

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{640691}}^1$

素因数の和:640743

約数の個数: 32

約数和(自身を含む): 1691426880

約数和(自身を除く): 1030233768

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 640691, 1281382, 1922073, 2562764, 3844146, 5125528, 7688292, 15376584, 27549713, 55099426, 82649139, 110198852, 165298278, 220397704, 330596556, 661193112]

約数ペア:

[(1, 661193112), (2, 330596556), (3, 220397704), (4, 165298278), (6, 110198852), (8, 82649139), (12, 55099426), (24, 27549713), (43, 15376584), (86, 7688292), (129, 5125528), (172, 3844146), (258, 2562764), (344, 1922073), (516, 1281382), (1032, 640691)]