11280220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{409}}^1$

素因数の和:622

約数の個数: 48

約数和(自身を含む): 27276480

約数和(自身を除く): 15996260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 409, 788, 818, 985, 1379, 1636, 1970, 2045, 2758, 2863, 3940, 4090, 5516, 5726, 6895, 8180, 11452, 13790, 14315, 27580, 28630, 57260, 80573, 161146, 322292, 402865, 564011, 805730, 1128022, 1611460, 2256044, 2820055, 5640110, 11280220]

約数ペア:

[(1, 11280220), (2, 5640110), (4, 2820055), (5, 2256044), (7, 1611460), (10, 1128022), (14, 805730), (20, 564011), (28, 402865), (35, 322292), (70, 161146), (140, 80573), (197, 57260), (394, 28630), (409, 27580), (788, 14315), (818, 13790), (985, 11452), (1379, 8180), (1636, 6895), (1970, 5726), (2045, 5516), (2758, 4090), (2863, 3940)]