25506040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1283}}^1$

素因数の和:1372

約数の個数: 64

約数和(自身を含む): 66562560

約数和(自身を除く): 41056520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1283, 1420, 1988, 2485, 2566, 2840, 3976, 4970, 5132, 6415, 8981, 9940, 10264, 12830, 17962, 19880, 25660, 35924, 44905, 51320, 71848, 89810, 91093, 179620, 182186, 359240, 364372, 455465, 637651, 728744, 910930, 1275302, 1821860, 2550604, 3188255, 3643720, 5101208, 6376510, 12753020, 25506040]

約数ペア:

[(1, 25506040), (2, 12753020), (4, 6376510), (5, 5101208), (7, 3643720), (8, 3188255), (10, 2550604), (14, 1821860), (20, 1275302), (28, 910930), (35, 728744), (40, 637651), (56, 455465), (70, 364372), (71, 359240), (140, 182186), (142, 179620), (280, 91093), (284, 89810), (355, 71848), (497, 51320), (568, 44905), (710, 35924), (994, 25660), (1283, 19880), (1420, 17962), (1988, 12830), (2485, 10264), (2566, 9940), (2840, 8981), (3976, 6415), (4970, 5132)]