20081010

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:355

約数の個数: 64

約数和(自身を含む): 50342400

約数和(自身を除く): 30261390

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 74, 79, 111, 158, 185, 222, 229, 237, 370, 395, 458, 474, 555, 687, 790, 1110, 1145, 1185, 1374, 2290, 2370, 2923, 3435, 5846, 6870, 8473, 8769, 14615, 16946, 17538, 18091, 25419, 29230, 36182, 42365, 43845, 50838, 54273, 84730, 87690, 90455, 108546, 127095, 180910, 254190, 271365, 542730, 669367, 1338734, 2008101, 3346835, 4016202, 6693670, 10040505, 20081010]

約数ペア:

[(1, 20081010), (2, 10040505), (3, 6693670), (5, 4016202), (6, 3346835), (10, 2008101), (15, 1338734), (30, 669367), (37, 542730), (74, 271365), (79, 254190), (111, 180910), (158, 127095), (185, 108546), (222, 90455), (229, 87690), (237, 84730), (370, 54273), (395, 50838), (458, 43845), (474, 42365), (555, 36182), (687, 29230), (790, 25419), (1110, 18091), (1145, 17538), (1185, 16946), (1374, 14615), (2290, 8769), (2370, 8473), (2923, 6870), (3435, 5846)]