4940000

素因数分解:

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

素因数の和:62

約数の個数: 120

約数和(自身を含む): 13776840

約数和(自身を除く): 8836840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 25, 26, 32, 38, 40, 50, 52, 65, 76, 80, 95, 100, 104, 125, 130, 152, 160, 190, 200, 208, 247, 250, 260, 304, 325, 380, 400, 416, 475, 494, 500, 520, 608, 625, 650, 760, 800, 950, 988, 1000, 1040, 1235, 1250, 1300, 1520, 1625, 1900, 1976, 2000, 2080, 2375, 2470, 2500, 2600, 3040, 3250, 3800, 3952, 4000, 4750, 4940, 5000, 5200, 6175, 6500, 7600, 7904, 8125, 9500, 9880, 10000, 10400, 11875, 12350, 13000, 15200, 16250, 19000, 19760, 20000, 23750, 24700, 26000, 30875, 32500, 38000, 39520, 47500, 49400, 52000, 61750, 65000, 76000, 95000, 98800, 123500, 130000, 154375, 190000, 197600, 247000, 260000, 308750, 380000, 494000, 617500, 988000, 1235000, 2470000, 4940000]

約数ペア:

[(1, 4940000), (2, 2470000), (4, 1235000), (5, 988000), (8, 617500), (10, 494000), (13, 380000), (16, 308750), (19, 260000), (20, 247000), (25, 197600), (26, 190000), (32, 154375), (38, 130000), (40, 123500), (50, 98800), (52, 95000), (65, 76000), (76, 65000), (80, 61750), (95, 52000), (100, 49400), (104, 47500), (125, 39520), (130, 38000), (152, 32500), (160, 30875), (190, 26000), (200, 24700), (208, 23750), (247, 20000), (250, 19760), (260, 19000), (304, 16250), (325, 15200), (380, 13000), (400, 12350), (416, 11875), (475, 10400), (494, 10000), (500, 9880), (520, 9500), (608, 8125), (625, 7904), (650, 7600), (760, 6500), (800, 6175), (950, 5200), (988, 5000), (1000, 4940), (1040, 4750), (1235, 4000), (1250, 3952), (1300, 3800), (1520, 3250), (1625, 3040), (1900, 2600), (1976, 2500), (2000, 2470), (2080, 2375)]