78280000

素因数分解:

$2^6\times 5^4\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:154

約数の個数: 140

約数和(自身を含む): 206308960

約数和(自身を除く): 128028960

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 64, 76, 80, 95, 100, 103, 125, 152, 160, 190, 200, 206, 250, 304, 320, 380, 400, 412, 475, 500, 515, 608, 625, 760, 800, 824, 950, 1000, 1030, 1216, 1250, 1520, 1600, 1648, 1900, 1957, 2000, 2060, 2375, 2500, 2575, 3040, 3296, 3800, 3914, 4000, 4120, 4750, 5000, 5150, 6080, 6592, 7600, 7828, 8000, 8240, 9500, 9785, 10000, 10300, 11875, 12875, 15200, 15656, 16480, 19000, 19570, 20000, 20600, 23750, 25750, 30400, 31312, 32960, 38000, 39140, 40000, 41200, 47500, 48925, 51500, 62624, 64375, 76000, 78280, 82400, 95000, 97850, 103000, 125248, 128750, 152000, 156560, 164800, 190000, 195700, 206000, 244625, 257500, 313120, 380000, 391400, 412000, 489250, 515000, 626240, 760000, 782800, 824000, 978500, 1030000, 1223125, 1565600, 1957000, 2060000, 2446250, 3131200, 3914000, 4120000, 4892500, 7828000, 9785000, 15656000, 19570000, 39140000, 78280000]

約数ペア:

[(1, 78280000), (2, 39140000), (4, 19570000), (5, 15656000), (8, 9785000), (10, 7828000), (16, 4892500), (19, 4120000), (20, 3914000), (25, 3131200), (32, 2446250), (38, 2060000), (40, 1957000), (50, 1565600), (64, 1223125), (76, 1030000), (80, 978500), (95, 824000), (100, 782800), (103, 760000), (125, 626240), (152, 515000), (160, 489250), (190, 412000), (200, 391400), (206, 380000), (250, 313120), (304, 257500), (320, 244625), (380, 206000), (400, 195700), (412, 190000), (475, 164800), (500, 156560), (515, 152000), (608, 128750), (625, 125248), (760, 103000), (800, 97850), (824, 95000), (950, 82400), (1000, 78280), (1030, 76000), (1216, 64375), (1250, 62624), (1520, 51500), (1600, 48925), (1648, 47500), (1900, 41200), (1957, 40000), (2000, 39140), (2060, 38000), (2375, 32960), (2500, 31312), (2575, 30400), (3040, 25750), (3296, 23750), (3800, 20600), (3914, 20000), (4000, 19570), (4120, 19000), (4750, 16480), (5000, 15656), (5150, 15200), (6080, 12875), (6592, 11875), (7600, 10300), (7828, 10000), (8000, 9785), (8240, 9500)]