289981874

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{499}}^1$

素因数の和:655

約数の個数: 64

約数和(自身を含む): 559104000

約数和(自身を除く): 269122126

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 103, 182, 206, 217, 403, 434, 499, 721, 806, 998, 1339, 1442, 2678, 2821, 3193, 3493, 5642, 6386, 6487, 6986, 9373, 12974, 15469, 18746, 22351, 30938, 41509, 44702, 45409, 51397, 83018, 90818, 102794, 108283, 201097, 216566, 290563, 359779, 402194, 581126, 668161, 719558, 1336322, 1407679, 1593307, 2815358, 3186614, 4677127, 9354254, 11153149, 20712991, 22306298, 41425982, 144990937, 289981874]

約数ペア:

[(1, 289981874), (2, 144990937), (7, 41425982), (13, 22306298), (14, 20712991), (26, 11153149), (31, 9354254), (62, 4677127), (91, 3186614), (103, 2815358), (182, 1593307), (206, 1407679), (217, 1336322), (403, 719558), (434, 668161), (499, 581126), (721, 402194), (806, 359779), (998, 290563), (1339, 216566), (1442, 201097), (2678, 108283), (2821, 102794), (3193, 90818), (3493, 83018), (5642, 51397), (6386, 45409), (6487, 44702), (6986, 41509), (9373, 30938), (12974, 22351), (15469, 18746)]