890245874

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{81629}}^1$

素因数の和:81698

約数の個数: 32

約数和(自身を含む): 1645660800

約数和(自身を除く): 755414926

約数列:

[1, 2, 7, 14, 19, 38, 41, 82, 133, 266, 287, 574, 779, 1558, 5453, 10906, 81629, 163258, 571403, 1142806, 1550951, 3101902, 3346789, 6693578, 10856657, 21713314, 23427523, 46855046, 63588991, 127177982, 445122937, 890245874]

約数ペア:

[(1, 890245874), (2, 445122937), (7, 127177982), (14, 63588991), (19, 46855046), (38, 23427523), (41, 21713314), (82, 10856657), (133, 6693578), (266, 3346789), (287, 3101902), (574, 1550951), (779, 1142806), (1558, 571403), (5453, 163258), (10906, 81629)]