2189680

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{271}}^1$

素因数の和:385

約数の個数: 40

約数和(自身を含む): 5160384

約数和(自身を除く): 2970704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 271, 404, 505, 542, 808, 1010, 1084, 1355, 1616, 2020, 2168, 2710, 4040, 4336, 5420, 8080, 10840, 21680, 27371, 54742, 109484, 136855, 218968, 273710, 437936, 547420, 1094840, 2189680]

約数ペア:

[(1, 2189680), (2, 1094840), (4, 547420), (5, 437936), (8, 273710), (10, 218968), (16, 136855), (20, 109484), (40, 54742), (80, 27371), (101, 21680), (202, 10840), (271, 8080), (404, 5420), (505, 4336), (542, 4040), (808, 2710), (1010, 2168), (1084, 2020), (1355, 1616)]