20157532318

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1663}}^1\times {\mathrm{2539}}^1$

素因数の和:4253

約数の個数: 64

約数和(自身を含む): 38951976960

約数和(自身を除く): 18794444642

約数列:

[1, 2, 7, 11, 14, 22, 31, 62, 77, 154, 217, 341, 434, 682, 1663, 2387, 2539, 3326, 4774, 5078, 11641, 17773, 18293, 23282, 27929, 35546, 36586, 51553, 55858, 78709, 103106, 128051, 157418, 195503, 256102, 360871, 391006, 550963, 567083, 721742, 865799, 1101926, 1134166, 1731598, 3969581, 4222357, 6060593, 7939162, 8444714, 12121186, 29556499, 46445927, 59112998, 92891854, 130893067, 261786134, 325121489, 650242978, 916251469, 1439823737, 1832502938, 2879647474, 10078766159, 20157532318]

約数ペア:

[(1, 20157532318), (2, 10078766159), (7, 2879647474), (11, 1832502938), (14, 1439823737), (22, 916251469), (31, 650242978), (62, 325121489), (77, 261786134), (154, 130893067), (217, 92891854), (341, 59112998), (434, 46445927), (682, 29556499), (1663, 12121186), (2387, 8444714), (2539, 7939162), (3326, 6060593), (4774, 4222357), (5078, 3969581), (11641, 1731598), (17773, 1134166), (18293, 1101926), (23282, 865799), (27929, 721742), (35546, 567083), (36586, 550963), (51553, 391006), (55858, 360871), (78709, 256102), (103106, 195503), (128051, 157418)]