12753020

素因数分解:

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

素因数の和:1370

約数の個数: 48

約数和(自身を含む): 31062528

約数和(自身を除く): 18309508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1283, 1420, 1988, 2485, 2566, 4970, 5132, 6415, 8981, 9940, 12830, 17962, 25660, 35924, 44905, 89810, 91093, 179620, 182186, 364372, 455465, 637651, 910930, 1275302, 1821860, 2550604, 3188255, 6376510, 12753020]

約数ペア:

[(1, 12753020), (2, 6376510), (4, 3188255), (5, 2550604), (7, 1821860), (10, 1275302), (14, 910930), (20, 637651), (28, 455465), (35, 364372), (70, 182186), (71, 179620), (140, 91093), (142, 89810), (284, 44905), (355, 35924), (497, 25660), (710, 17962), (994, 12830), (1283, 9940), (1420, 8981), (1988, 6415), (2485, 5132), (2566, 4970)]