128440000

素因数分解:

$2^6\times 5^4\times {\mathrm{13}}^2\times {\mathrm{19}}^1$

素因数の和:77

約数の個数: 210

約数和(自身を含む): 363024420

約数和(自身を除く): 234584420

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 25, 26, 32, 38, 40, 50, 52, 64, 65, 76, 80, 95, 100, 104, 125, 130, 152, 160, 169, 190, 200, 208, 247, 250, 260, 304, 320, 325, 338, 380, 400, 416, 475, 494, 500, 520, 608, 625, 650, 676, 760, 800, 832, 845, 950, 988, 1000, 1040, 1216, 1235, 1250, 1300, 1352, 1520, 1600, 1625, 1690, 1900, 1976, 2000, 2080, 2375, 2470, 2500, 2600, 2704, 3040, 3211, 3250, 3380, 3800, 3952, 4000, 4160, 4225, 4750, 4940, 5000, 5200, 5408, 6080, 6175, 6422, 6500, 6760, 7600, 7904, 8000, 8125, 8450, 9500, 9880, 10000, 10400, 10816, 11875, 12350, 12844, 13000, 13520, 15200, 15808, 16055, 16250, 16900, 19000, 19760, 20000, 20800, 21125, 23750, 24700, 25688, 26000, 27040, 30400, 30875, 32110, 32500, 33800, 38000, 39520, 40000, 42250, 47500, 49400, 51376, 52000, 54080, 61750, 64220, 65000, 67600, 76000, 79040, 80275, 84500, 95000, 98800, 102752, 104000, 105625, 123500, 128440, 130000, 135200, 152000, 154375, 160550, 169000, 190000, 197600, 205504, 211250, 247000, 256880, 260000, 270400, 308750, 321100, 338000, 380000, 395200, 401375, 422500, 494000, 513760, 520000, 617500, 642200, 676000, 760000, 802750, 845000, 988000, 1027520, 1235000, 1284400, 1352000, 1605500, 1690000, 1976000, 2006875, 2470000, 2568800, 3211000, 3380000, 4013750, 4940000, 5137600, 6422000, 6760000, 8027500, 9880000, 12844000, 16055000, 25688000, 32110000, 64220000, 128440000]

約数ペア:

[(1, 128440000), (2, 64220000), (4, 32110000), (5, 25688000), (8, 16055000), (10, 12844000), (13, 9880000), (16, 8027500), (19, 6760000), (20, 6422000), (25, 5137600), (26, 4940000), (32, 4013750), (38, 3380000), (40, 3211000), (50, 2568800), (52, 2470000), (64, 2006875), (65, 1976000), (76, 1690000), (80, 1605500), (95, 1352000), (100, 1284400), (104, 1235000), (125, 1027520), (130, 988000), (152, 845000), (160, 802750), (169, 760000), (190, 676000), (200, 642200), (208, 617500), (247, 520000), (250, 513760), (260, 494000), (304, 422500), (320, 401375), (325, 395200), (338, 380000), (380, 338000), (400, 321100), (416, 308750), (475, 270400), (494, 260000), (500, 256880), (520, 247000), (608, 211250), (625, 205504), (650, 197600), (676, 190000), (760, 169000), (800, 160550), (832, 154375), (845, 152000), (950, 135200), (988, 130000), (1000, 128440), (1040, 123500), (1216, 105625), (1235, 104000), (1250, 102752), (1300, 98800), (1352, 95000), (1520, 84500), (1600, 80275), (1625, 79040), (1690, 76000), (1900, 67600), (1976, 65000), (2000, 64220), (2080, 61750), (2375, 54080), (2470, 52000), (2500, 51376), (2600, 49400), (2704, 47500), (3040, 42250), (3211, 40000), (3250, 39520), (3380, 38000), (3800, 33800), (3952, 32500), (4000, 32110), (4160, 30875), (4225, 30400), (4750, 27040), (4940, 26000), (5000, 25688), (5200, 24700), (5408, 23750), (6080, 21125), (6175, 20800), (6422, 20000), (6500, 19760), (6760, 19000), (7600, 16900), (7904, 16250), (8000, 16055), (8125, 15808), (8450, 15200), (9500, 13520), (9880, 13000), (10000, 12844), (10400, 12350), (10816, 11875)]