20253344

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1$

素因数の和:453

約数の個数: 48

約数和(自身を含む): 41912640

約数和(自身を除く): 21659296

約数列:

[1, 2, 4, 8, 16, 32, 41, 43, 82, 86, 164, 172, 328, 344, 359, 656, 688, 718, 1312, 1376, 1436, 1763, 2872, 3526, 5744, 7052, 11488, 14104, 14719, 15437, 28208, 29438, 30874, 56416, 58876, 61748, 117752, 123496, 235504, 246992, 471008, 493984, 632917, 1265834, 2531668, 5063336, 10126672, 20253344]

約数ペア:

[(1, 20253344), (2, 10126672), (4, 5063336), (8, 2531668), (16, 1265834), (32, 632917), (41, 493984), (43, 471008), (82, 246992), (86, 235504), (164, 123496), (172, 117752), (328, 61748), (344, 58876), (359, 56416), (656, 30874), (688, 29438), (718, 28208), (1312, 15437), (1376, 14719), (1436, 14104), (1763, 11488), (2872, 7052), (3526, 5744)]