494000

素因数分解:

$2^4\times 5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:55

約数の個数: 80

約数和(自身を含む): 1354080

約数和(自身を除く): 860080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 25, 26, 38, 40, 50, 52, 65, 76, 80, 95, 100, 104, 125, 130, 152, 190, 200, 208, 247, 250, 260, 304, 325, 380, 400, 475, 494, 500, 520, 650, 760, 950, 988, 1000, 1040, 1235, 1300, 1520, 1625, 1900, 1976, 2000, 2375, 2470, 2600, 3250, 3800, 3952, 4750, 4940, 5200, 6175, 6500, 7600, 9500, 9880, 12350, 13000, 19000, 19760, 24700, 26000, 30875, 38000, 49400, 61750, 98800, 123500, 247000, 494000]

約数ペア:

[(1, 494000), (2, 247000), (4, 123500), (5, 98800), (8, 61750), (10, 49400), (13, 38000), (16, 30875), (19, 26000), (20, 24700), (25, 19760), (26, 19000), (38, 13000), (40, 12350), (50, 9880), (52, 9500), (65, 7600), (76, 6500), (80, 6175), (95, 5200), (100, 4940), (104, 4750), (125, 3952), (130, 3800), (152, 3250), (190, 2600), (200, 2470), (208, 2375), (247, 2000), (250, 1976), (260, 1900), (304, 1625), (325, 1520), (380, 1300), (400, 1235), (475, 1040), (494, 1000), (500, 988), (520, 950), (650, 760)]