20322855

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{433}}^1$

素因数の和:600

約数の個数: 48

約数和(自身を含む): 40622400

約数和(自身を除く): 20299545

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 149, 315, 433, 447, 745, 1043, 1299, 1341, 2165, 2235, 3031, 3129, 3897, 5215, 6495, 6705, 9093, 9387, 15155, 15645, 19485, 27279, 45465, 46935, 64517, 136395, 193551, 322585, 451619, 580653, 967755, 1354857, 2258095, 2903265, 4064571, 6774285, 20322855]

約数ペア:

[(1, 20322855), (3, 6774285), (5, 4064571), (7, 2903265), (9, 2258095), (15, 1354857), (21, 967755), (35, 580653), (45, 451619), (63, 322585), (105, 193551), (149, 136395), (315, 64517), (433, 46935), (447, 45465), (745, 27279), (1043, 19485), (1299, 15645), (1341, 15155), (2165, 9387), (2235, 9093), (3031, 6705), (3129, 6495), (3897, 5215)]