20795404

素因数分解:

$2^2\times 7^3\times {\mathrm{23}}^1\times {\mathrm{659}}^1$

素因数の和:707

約数の個数: 48

約数和(自身を含む): 44352000

約数和(自身を除く): 23556596

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 92, 98, 161, 196, 322, 343, 644, 659, 686, 1127, 1318, 1372, 2254, 2636, 4508, 4613, 7889, 9226, 15157, 15778, 18452, 30314, 31556, 32291, 60628, 64582, 106099, 129164, 212198, 226037, 424396, 452074, 742693, 904148, 1485386, 2970772, 5198851, 10397702, 20795404]

約数ペア:

[(1, 20795404), (2, 10397702), (4, 5198851), (7, 2970772), (14, 1485386), (23, 904148), (28, 742693), (46, 452074), (49, 424396), (92, 226037), (98, 212198), (161, 129164), (196, 106099), (322, 64582), (343, 60628), (644, 32291), (659, 31556), (686, 30314), (1127, 18452), (1318, 15778), (1372, 15157), (2254, 9226), (2636, 7889), (4508, 4613)]