19478690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{617}}^1$

素因数の和:683

約数の個数: 64

約数和(自身を含む): 44851968

約数和(自身を除く): 25373278

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 41, 55, 70, 77, 82, 110, 154, 205, 287, 385, 410, 451, 574, 617, 770, 902, 1234, 1435, 2255, 2870, 3085, 3157, 4319, 4510, 6170, 6314, 6787, 8638, 13574, 15785, 21595, 25297, 31570, 33935, 43190, 47509, 50594, 67870, 95018, 126485, 177079, 237545, 252970, 278267, 354158, 475090, 556534, 885395, 1391335, 1770790, 1947869, 2782670, 3895738, 9739345, 19478690]

約数ペア:

[(1, 19478690), (2, 9739345), (5, 3895738), (7, 2782670), (10, 1947869), (11, 1770790), (14, 1391335), (22, 885395), (35, 556534), (41, 475090), (55, 354158), (70, 278267), (77, 252970), (82, 237545), (110, 177079), (154, 126485), (205, 95018), (287, 67870), (385, 50594), (410, 47509), (451, 43190), (574, 33935), (617, 31570), (770, 25297), (902, 21595), (1234, 15785), (1435, 13574), (2255, 8638), (2870, 6787), (3085, 6314), (3157, 6170), (4319, 4510)]