256657744

素因数分解:

$2^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{37567}}^1$

素因数の和:37643

約数の個数: 40

約数和(自身を含む): 577645568

約数和(自身を除く): 320987824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 61, 112, 122, 244, 427, 488, 854, 976, 1708, 3416, 6832, 37567, 75134, 150268, 262969, 300536, 525938, 601072, 1051876, 2103752, 2291587, 4207504, 4583174, 9166348, 16041109, 18332696, 32082218, 36665392, 64164436, 128328872, 256657744]

約数ペア:

[(1, 256657744), (2, 128328872), (4, 64164436), (7, 36665392), (8, 32082218), (14, 18332696), (16, 16041109), (28, 9166348), (56, 4583174), (61, 4207504), (112, 2291587), (122, 2103752), (244, 1051876), (427, 601072), (488, 525938), (854, 300536), (976, 262969), (1708, 150268), (3416, 75134), (6832, 37567)]