49400000

素因数分解:

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

素因数の和:69

約数の個数: 168

約数和(自身を含む): 138897360

約数和(自身を除く): 89497360

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, 190, 200, 208, 247, 250, 260, 304, 320, 325, 380, 400, 416, 475, 494, 500, 520, 608, 625, 650, 760, 800, 832, 950, 988, 1000, 1040, 1216, 1235, 1250, 1300, 1520, 1600, 1625, 1900, 1976, 2000, 2080, 2375, 2470, 2500, 2600, 3040, 3125, 3250, 3800, 3952, 4000, 4160, 4750, 4940, 5000, 5200, 6080, 6175, 6250, 6500, 7600, 7904, 8000, 8125, 9500, 9880, 10000, 10400, 11875, 12350, 12500, 13000, 15200, 15808, 16250, 19000, 19760, 20000, 20800, 23750, 24700, 25000, 26000, 30400, 30875, 32500, 38000, 39520, 40000, 40625, 47500, 49400, 50000, 52000, 59375, 61750, 65000, 76000, 79040, 81250, 95000, 98800, 100000, 104000, 118750, 123500, 130000, 152000, 154375, 162500, 190000, 197600, 200000, 237500, 247000, 260000, 308750, 325000, 380000, 395200, 475000, 494000, 520000, 617500, 650000, 760000, 771875, 950000, 988000, 1235000, 1300000, 1543750, 1900000, 1976000, 2470000, 2600000, 3087500, 3800000, 4940000, 6175000, 9880000, 12350000, 24700000, 49400000]

約数ペア:

[(1, 49400000), (2, 24700000), (4, 12350000), (5, 9880000), (8, 6175000), (10, 4940000), (13, 3800000), (16, 3087500), (19, 2600000), (20, 2470000), (25, 1976000), (26, 1900000), (32, 1543750), (38, 1300000), (40, 1235000), (50, 988000), (52, 950000), (64, 771875), (65, 760000), (76, 650000), (80, 617500), (95, 520000), (100, 494000), (104, 475000), (125, 395200), (130, 380000), (152, 325000), (160, 308750), (190, 260000), (200, 247000), (208, 237500), (247, 200000), (250, 197600), (260, 190000), (304, 162500), (320, 154375), (325, 152000), (380, 130000), (400, 123500), (416, 118750), (475, 104000), (494, 100000), (500, 98800), (520, 95000), (608, 81250), (625, 79040), (650, 76000), (760, 65000), (800, 61750), (832, 59375), (950, 52000), (988, 50000), (1000, 49400), (1040, 47500), (1216, 40625), (1235, 40000), (1250, 39520), (1300, 38000), (1520, 32500), (1600, 30875), (1625, 30400), (1900, 26000), (1976, 25000), (2000, 24700), (2080, 23750), (2375, 20800), (2470, 20000), (2500, 19760), (2600, 19000), (3040, 16250), (3125, 15808), (3250, 15200), (3800, 13000), (3952, 12500), (4000, 12350), (4160, 11875), (4750, 10400), (4940, 10000), (5000, 9880), (5200, 9500), (6080, 8125), (6175, 8000), (6250, 7904), (6500, 7600)]