18890502688

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{334843}}^1$

素因数の和:334937

約数の個数: 48

約数和(自身を含む): 38983877856

約数和(自身を除く): 20093375168

約数列:

[1, 2, 4, 8, 16, 32, 41, 43, 82, 86, 164, 172, 328, 344, 656, 688, 1312, 1376, 1763, 3526, 7052, 14104, 28208, 56416, 334843, 669686, 1339372, 2678744, 5357488, 10714976, 13728563, 14398249, 27457126, 28796498, 54914252, 57592996, 109828504, 115185992, 219657008, 230371984, 439314016, 460743968, 590328209, 1180656418, 2361312836, 4722625672, 9445251344, 18890502688]

約数ペア:

[(1, 18890502688), (2, 9445251344), (4, 4722625672), (8, 2361312836), (16, 1180656418), (32, 590328209), (41, 460743968), (43, 439314016), (82, 230371984), (86, 219657008), (164, 115185992), (172, 109828504), (328, 57592996), (344, 54914252), (656, 28796498), (688, 27457126), (1312, 14398249), (1376, 13728563), (1763, 10714976), (3526, 5357488), (7052, 2678744), (14104, 1339372), (28208, 669686), (56416, 334843)]