9899000

素因数分解:

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

素因数の和:561

約数の個数: 64

約数和(自身を含む): 24429600

約数和(自身を除く): 14530600

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 200, 250, 380, 475, 500, 521, 760, 950, 1000, 1042, 1900, 2084, 2375, 2605, 3800, 4168, 4750, 5210, 9500, 9899, 10420, 13025, 19000, 19798, 20840, 26050, 39596, 49495, 52100, 65125, 79192, 98990, 104200, 130250, 197980, 247475, 260500, 395960, 494950, 521000, 989900, 1237375, 1979800, 2474750, 4949500, 9899000]

約数ペア:

[(1, 9899000), (2, 4949500), (4, 2474750), (5, 1979800), (8, 1237375), (10, 989900), (19, 521000), (20, 494950), (25, 395960), (38, 260500), (40, 247475), (50, 197980), (76, 130250), (95, 104200), (100, 98990), (125, 79192), (152, 65125), (190, 52100), (200, 49495), (250, 39596), (380, 26050), (475, 20840), (500, 19798), (521, 19000), (760, 13025), (950, 10420), (1000, 9899), (1042, 9500), (1900, 5210), (2084, 4750), (2375, 4168), (2605, 3800)]