78740000

素因数分解:

$2^5\times 5^4\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:188

約数の個数: 120

約数和(自身を含む): 201535488

約数和(自身を除く): 122795488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 80, 100, 124, 125, 127, 155, 160, 200, 248, 250, 254, 310, 400, 496, 500, 508, 620, 625, 635, 775, 800, 992, 1000, 1016, 1240, 1250, 1270, 1550, 2000, 2032, 2480, 2500, 2540, 3100, 3175, 3875, 3937, 4000, 4064, 4960, 5000, 5080, 6200, 6350, 7750, 7874, 10000, 10160, 12400, 12700, 15500, 15748, 15875, 19375, 19685, 20000, 20320, 24800, 25400, 31000, 31496, 31750, 38750, 39370, 50800, 62000, 62992, 63500, 77500, 78740, 79375, 98425, 101600, 124000, 125984, 127000, 155000, 157480, 158750, 196850, 254000, 310000, 314960, 317500, 393700, 492125, 508000, 620000, 629920, 635000, 787400, 984250, 1270000, 1574800, 1968500, 2460625, 2540000, 3149600, 3937000, 4921250, 7874000, 9842500, 15748000, 19685000, 39370000, 78740000]

約数ペア:

[(1, 78740000), (2, 39370000), (4, 19685000), (5, 15748000), (8, 9842500), (10, 7874000), (16, 4921250), (20, 3937000), (25, 3149600), (31, 2540000), (32, 2460625), (40, 1968500), (50, 1574800), (62, 1270000), (80, 984250), (100, 787400), (124, 635000), (125, 629920), (127, 620000), (155, 508000), (160, 492125), (200, 393700), (248, 317500), (250, 314960), (254, 310000), (310, 254000), (400, 196850), (496, 158750), (500, 157480), (508, 155000), (620, 127000), (625, 125984), (635, 124000), (775, 101600), (800, 98425), (992, 79375), (1000, 78740), (1016, 77500), (1240, 63500), (1250, 62992), (1270, 62000), (1550, 50800), (2000, 39370), (2032, 38750), (2480, 31750), (2500, 31496), (2540, 31000), (3100, 25400), (3175, 24800), (3875, 20320), (3937, 20000), (4000, 19685), (4064, 19375), (4960, 15875), (5000, 15748), (5080, 15500), (6200, 12700), (6350, 12400), (7750, 10160), (7874, 10000)]