18763472

素因数分解:

$2^4\times 7^3\times {\mathrm{13}}^1\times {\mathrm{263}}^1$

素因数の和:305

約数の個数: 80

約数和(自身を含む): 45830400

約数和(自身を除く): 27066928

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 263, 343, 364, 392, 526, 637, 686, 728, 784, 1052, 1274, 1372, 1456, 1841, 2104, 2548, 2744, 3419, 3682, 4208, 4459, 5096, 5488, 6838, 7364, 8918, 10192, 12887, 13676, 14728, 17836, 23933, 25774, 27352, 29456, 35672, 47866, 51548, 54704, 71344, 90209, 95732, 103096, 167531, 180418, 191464, 206192, 335062, 360836, 382928, 670124, 721672, 1172717, 1340248, 1443344, 2345434, 2680496, 4690868, 9381736, 18763472]

約数ペア:

[(1, 18763472), (2, 9381736), (4, 4690868), (7, 2680496), (8, 2345434), (13, 1443344), (14, 1340248), (16, 1172717), (26, 721672), (28, 670124), (49, 382928), (52, 360836), (56, 335062), (91, 206192), (98, 191464), (104, 180418), (112, 167531), (182, 103096), (196, 95732), (208, 90209), (263, 71344), (343, 54704), (364, 51548), (392, 47866), (526, 35672), (637, 29456), (686, 27352), (728, 25774), (784, 23933), (1052, 17836), (1274, 14728), (1372, 13676), (1456, 12887), (1841, 10192), (2104, 8918), (2548, 7364), (2744, 6838), (3419, 5488), (3682, 5096), (4208, 4459)]