257520368

素因数分解:

$2^4\times 7^1\times {\mathrm{59}}^1\times {\mathrm{38971}}^1$

素因数の和:39045

約数の個数: 40

約数和(自身を含む): 579903360

約数和(自身を除く): 322382992

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 59, 112, 118, 236, 413, 472, 826, 944, 1652, 3304, 6608, 38971, 77942, 155884, 272797, 311768, 545594, 623536, 1091188, 2182376, 2299289, 4364752, 4598578, 9197156, 16095023, 18394312, 32190046, 36788624, 64380092, 128760184, 257520368]

約数ペア:

[(1, 257520368), (2, 128760184), (4, 64380092), (7, 36788624), (8, 32190046), (14, 18394312), (16, 16095023), (28, 9197156), (56, 4598578), (59, 4364752), (112, 2299289), (118, 2182376), (236, 1091188), (413, 623536), (472, 545594), (826, 311768), (944, 272797), (1652, 155884), (3304, 77942), (6608, 38971)]