2020125107

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{331}}^1$

素因数の和:449

約数の個数: 72

約数和(自身を含む): 2825883072

約数和(自身を除く): 805757965

約数列:

[1, 7, 11, 13, 49, 67, 77, 91, 143, 169, 331, 469, 539, 637, 737, 871, 1001, 1183, 1859, 2317, 3283, 3641, 4303, 5159, 6097, 7007, 8281, 9581, 11323, 13013, 16219, 22177, 25487, 30121, 36113, 42679, 47333, 55939, 67067, 79261, 91091, 124553, 155239, 178409, 210847, 243947, 288301, 331331, 391573, 469469, 554827, 615329, 871871, 1086673, 1707629, 2018107, 2319317, 2741011, 3171311, 3747913, 4307303, 6103097, 11953403, 14126749, 22199177, 26235391, 30151121, 41227043, 155394239, 183647737, 288589301, 2020125107]

約数ペア:

[(1, 2020125107), (7, 288589301), (11, 183647737), (13, 155394239), (49, 41227043), (67, 30151121), (77, 26235391), (91, 22199177), (143, 14126749), (169, 11953403), (331, 6103097), (469, 4307303), (539, 3747913), (637, 3171311), (737, 2741011), (871, 2319317), (1001, 2018107), (1183, 1707629), (1859, 1086673), (2317, 871871), (3283, 615329), (3641, 554827), (4303, 469469), (5159, 391573), (6097, 331331), (7007, 288301), (8281, 243947), (9581, 210847), (11323, 178409), (13013, 155239), (16219, 124553), (22177, 91091), (25487, 79261), (30121, 67067), (36113, 55939), (42679, 47333)]