2644140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{347}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 7483392

約数和(自身を除く): 4839252

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 127, 254, 347, 381, 508, 635, 694, 762, 1041, 1270, 1388, 1524, 1735, 1905, 2082, 2540, 3470, 3810, 4164, 5205, 6940, 7620, 10410, 20820, 44069, 88138, 132207, 176276, 220345, 264414, 440690, 528828, 661035, 881380, 1322070, 2644140]

約数ペア:

[(1, 2644140), (2, 1322070), (3, 881380), (4, 661035), (5, 528828), (6, 440690), (10, 264414), (12, 220345), (15, 176276), (20, 132207), (30, 88138), (60, 44069), (127, 20820), (254, 10410), (347, 7620), (381, 6940), (508, 5205), (635, 4164), (694, 3810), (762, 3470), (1041, 2540), (1270, 2082), (1388, 1905), (1524, 1735)]