1920555

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1$

素因数の和:105

約数の個数: 72

約数和(自身を含む): 4232592

約数和(自身を除く): 2312037

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 49, 63, 65, 67, 91, 105, 117, 147, 195, 201, 245, 273, 315, 335, 441, 455, 469, 585, 603, 637, 735, 819, 871, 1005, 1365, 1407, 1911, 2205, 2345, 2613, 3015, 3185, 3283, 4095, 4221, 4355, 5733, 6097, 7035, 7839, 9555, 9849, 13065, 16415, 18291, 21105, 28665, 29547, 30485, 39195, 42679, 49245, 54873, 91455, 128037, 147735, 213395, 274365, 384111, 640185, 1920555]

約数ペア:

[(1, 1920555), (3, 640185), (5, 384111), (7, 274365), (9, 213395), (13, 147735), (15, 128037), (21, 91455), (35, 54873), (39, 49245), (45, 42679), (49, 39195), (63, 30485), (65, 29547), (67, 28665), (91, 21105), (105, 18291), (117, 16415), (147, 13065), (195, 9849), (201, 9555), (245, 7839), (273, 7035), (315, 6097), (335, 5733), (441, 4355), (455, 4221), (469, 4095), (585, 3283), (603, 3185), (637, 3015), (735, 2613), (819, 2345), (871, 2205), (1005, 1911), (1365, 1407)]