1979800

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{521}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 4854600

約数和(自身を除く): 2874800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 521, 760, 950, 1042, 1900, 2084, 2605, 3800, 4168, 5210, 9899, 10420, 13025, 19798, 20840, 26050, 39596, 49495, 52100, 79192, 98990, 104200, 197980, 247475, 395960, 494950, 989900, 1979800]

約数ペア:

[(1, 1979800), (2, 989900), (4, 494950), (5, 395960), (8, 247475), (10, 197980), (19, 104200), (20, 98990), (25, 79192), (38, 52100), (40, 49495), (50, 39596), (76, 26050), (95, 20840), (100, 19798), (152, 13025), (190, 10420), (200, 9899), (380, 5210), (475, 4168), (521, 3800), (760, 2605), (950, 2084), (1042, 1900)]