20679435

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{277}}^1$

素因数の和:377

約数の個数: 64

約数和(自身を含む): 42700800

約数和(自身を除く): 22021365

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 79, 105, 135, 189, 237, 277, 315, 395, 553, 711, 831, 945, 1185, 1385, 1659, 1939, 2133, 2493, 2765, 3555, 4155, 4977, 5817, 7479, 8295, 9695, 10665, 12465, 14931, 17451, 21883, 24885, 29085, 37395, 52353, 65649, 74655, 87255, 109415, 153181, 196947, 261765, 328245, 459543, 590841, 765905, 984735, 1378629, 2297715, 2954205, 4135887, 6893145, 20679435]

約数ペア:

[(1, 20679435), (3, 6893145), (5, 4135887), (7, 2954205), (9, 2297715), (15, 1378629), (21, 984735), (27, 765905), (35, 590841), (45, 459543), (63, 328245), (79, 261765), (105, 196947), (135, 153181), (189, 109415), (237, 87255), (277, 74655), (315, 65649), (395, 52353), (553, 37395), (711, 29085), (831, 24885), (945, 21883), (1185, 17451), (1385, 14931), (1659, 12465), (1939, 10665), (2133, 9695), (2493, 8295), (2765, 7479), (3555, 5817), (4155, 4977)]