199995400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{90907}}^1$

素因数の和:90934

約数の個数: 48

約数和(自身を含む): 507266640

約数和(自身を除く): 307271240

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 1100, 2200, 90907, 181814, 363628, 454535, 727256, 909070, 999977, 1818140, 1999954, 2272675, 3636280, 3999908, 4545350, 4999885, 7999816, 9090700, 9999770, 18181400, 19999540, 24999425, 39999080, 49998850, 99997700, 199995400]

約数ペア:

[(1, 199995400), (2, 99997700), (4, 49998850), (5, 39999080), (8, 24999425), (10, 19999540), (11, 18181400), (20, 9999770), (22, 9090700), (25, 7999816), (40, 4999885), (44, 4545350), (50, 3999908), (55, 3636280), (88, 2272675), (100, 1999954), (110, 1818140), (200, 999977), (220, 909070), (275, 727256), (440, 454535), (550, 363628), (1100, 181814), (2200, 90907)]