1979890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{439}}^1$

素因数の和:498

約数の個数: 32

約数和(自身を含む): 3991680

約数和(自身を除く): 2011790

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 110, 205, 410, 439, 451, 878, 902, 2195, 2255, 4390, 4510, 4829, 9658, 17999, 24145, 35998, 48290, 89995, 179990, 197989, 395978, 989945, 1979890]

約数ペア:

[(1, 1979890), (2, 989945), (5, 395978), (10, 197989), (11, 179990), (22, 89995), (41, 48290), (55, 35998), (82, 24145), (110, 17999), (205, 9658), (410, 4829), (439, 4510), (451, 4390), (878, 2255), (902, 2195)]