494000000

素因数分解:

$2^7\times 5^6\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:76

約数の個数: 224

約数和(自身を含む): 1394513400

約数和(自身を除く): 900513400

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, 128, 130, 152, 160, 190, 200, 208, 247, 250, 260, 304, 320, 325, 380, 400, 416, 475, 494, 500, 520, 608, 625, 640, 650, 760, 800, 832, 950, 988, 1000, 1040, 1216, 1235, 1250, 1300, 1520, 1600, 1625, 1664, 1900, 1976, 2000, 2080, 2375, 2432, 2470, 2500, 2600, 3040, 3125, 3200, 3250, 3800, 3952, 4000, 4160, 4750, 4940, 5000, 5200, 6080, 6175, 6250, 6500, 7600, 7904, 8000, 8125, 8320, 9500, 9880, 10000, 10400, 11875, 12160, 12350, 12500, 13000, 15200, 15625, 15808, 16000, 16250, 19000, 19760, 20000, 20800, 23750, 24700, 25000, 26000, 30400, 30875, 31250, 31616, 32500, 38000, 39520, 40000, 40625, 41600, 47500, 49400, 50000, 52000, 59375, 60800, 61750, 62500, 65000, 76000, 79040, 80000, 81250, 95000, 98800, 100000, 104000, 118750, 123500, 125000, 130000, 152000, 154375, 158080, 162500, 190000, 197600, 200000, 203125, 208000, 237500, 247000, 250000, 260000, 296875, 304000, 308750, 325000, 380000, 395200, 400000, 406250, 475000, 494000, 500000, 520000, 593750, 617500, 650000, 760000, 771875, 790400, 812500, 950000, 988000, 1000000, 1040000, 1187500, 1235000, 1300000, 1520000, 1543750, 1625000, 1900000, 1976000, 2000000, 2375000, 2470000, 2600000, 3087500, 3250000, 3800000, 3859375, 3952000, 4750000, 4940000, 5200000, 6175000, 6500000, 7600000, 7718750, 9500000, 9880000, 12350000, 13000000, 15437500, 19000000, 19760000, 24700000, 26000000, 30875000, 38000000, 49400000, 61750000, 98800000, 123500000, 247000000, 494000000]

約数ペア:

[(1, 494000000), (2, 247000000), (4, 123500000), (5, 98800000), (8, 61750000), (10, 49400000), (13, 38000000), (16, 30875000), (19, 26000000), (20, 24700000), (25, 19760000), (26, 19000000), (32, 15437500), (38, 13000000), (40, 12350000), (50, 9880000), (52, 9500000), (64, 7718750), (65, 7600000), (76, 6500000), (80, 6175000), (95, 5200000), (100, 4940000), (104, 4750000), (125, 3952000), (128, 3859375), (130, 3800000), (152, 3250000), (160, 3087500), (190, 2600000), (200, 2470000), (208, 2375000), (247, 2000000), (250, 1976000), (260, 1900000), (304, 1625000), (320, 1543750), (325, 1520000), (380, 1300000), (400, 1235000), (416, 1187500), (475, 1040000), (494, 1000000), (500, 988000), (520, 950000), (608, 812500), (625, 790400), (640, 771875), (650, 760000), (760, 650000), (800, 617500), (832, 593750), (950, 520000), (988, 500000), (1000, 494000), (1040, 475000), (1216, 406250), (1235, 400000), (1250, 395200), (1300, 380000), (1520, 325000), (1600, 308750), (1625, 304000), (1664, 296875), (1900, 260000), (1976, 250000), (2000, 247000), (2080, 237500), (2375, 208000), (2432, 203125), (2470, 200000), (2500, 197600), (2600, 190000), (3040, 162500), (3125, 158080), (3200, 154375), (3250, 152000), (3800, 130000), (3952, 125000), (4000, 123500), (4160, 118750), (4750, 104000), (4940, 100000), (5000, 98800), (5200, 95000), (6080, 81250), (6175, 80000), (6250, 79040), (6500, 76000), (7600, 65000), (7904, 62500), (8000, 61750), (8125, 60800), (8320, 59375), (9500, 52000), (9880, 50000), (10000, 49400), (10400, 47500), (11875, 41600), (12160, 40625), (12350, 40000), (12500, 39520), (13000, 38000), (15200, 32500), (15625, 31616), (15808, 31250), (16000, 30875), (16250, 30400), (19000, 26000), (19760, 25000), (20000, 24700), (20800, 23750)]