12701900

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{1789}}^1$

素因数の和:1874

約数の個数: 36

約数和(自身を含む): 27966960

約数和(自身を除く): 15265060

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 710, 1420, 1775, 1789, 3550, 3578, 7100, 7156, 8945, 17890, 35780, 44725, 89450, 127019, 178900, 254038, 508076, 635095, 1270190, 2540380, 3175475, 6350950, 12701900]

約数ペア:

[(1, 12701900), (2, 6350950), (4, 3175475), (5, 2540380), (10, 1270190), (20, 635095), (25, 508076), (50, 254038), (71, 178900), (100, 127019), (142, 89450), (284, 44725), (355, 35780), (710, 17890), (1420, 8945), (1775, 7156), (1789, 7100), (3550, 3578)]