81013376

素因数分解:

$2^7\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1$

素因数の和:457

約数の個数: 64

約数和(自身を含む): 169646400

約数和(自身を除く): 88633024

約数列:

[1, 2, 4, 8, 16, 32, 41, 43, 64, 82, 86, 128, 164, 172, 328, 344, 359, 656, 688, 718, 1312, 1376, 1436, 1763, 2624, 2752, 2872, 3526, 5248, 5504, 5744, 7052, 11488, 14104, 14719, 15437, 22976, 28208, 29438, 30874, 45952, 56416, 58876, 61748, 112832, 117752, 123496, 225664, 235504, 246992, 471008, 493984, 632917, 942016, 987968, 1265834, 1884032, 1975936, 2531668, 5063336, 10126672, 20253344, 40506688, 81013376]

約数ペア:

[(1, 81013376), (2, 40506688), (4, 20253344), (8, 10126672), (16, 5063336), (32, 2531668), (41, 1975936), (43, 1884032), (64, 1265834), (82, 987968), (86, 942016), (128, 632917), (164, 493984), (172, 471008), (328, 246992), (344, 235504), (359, 225664), (656, 123496), (688, 117752), (718, 112832), (1312, 61748), (1376, 58876), (1436, 56416), (1763, 45952), (2624, 30874), (2752, 29438), (2872, 28208), (3526, 22976), (5248, 15437), (5504, 14719), (5744, 14104), (7052, 11488)]