196850000

素因数分解:

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

素因数の和:191

約数の個数: 120

約数和(自身を含む): 495968256

約数和(自身を除く): 299118256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 125, 127, 155, 200, 248, 250, 254, 310, 400, 496, 500, 508, 620, 625, 635, 775, 1000, 1016, 1240, 1250, 1270, 1550, 2000, 2032, 2480, 2500, 2540, 3100, 3125, 3175, 3875, 3937, 5000, 5080, 6200, 6250, 6350, 7750, 7874, 10000, 10160, 12400, 12500, 12700, 15500, 15748, 15875, 19375, 19685, 25000, 25400, 31000, 31496, 31750, 38750, 39370, 50000, 50800, 62000, 62992, 63500, 77500, 78740, 79375, 96875, 98425, 127000, 155000, 157480, 158750, 193750, 196850, 254000, 310000, 314960, 317500, 387500, 393700, 396875, 492125, 635000, 775000, 787400, 793750, 984250, 1270000, 1550000, 1574800, 1587500, 1968500, 2460625, 3175000, 3937000, 4921250, 6350000, 7874000, 9842500, 12303125, 19685000, 24606250, 39370000, 49212500, 98425000, 196850000]

約数ペア:

[(1, 196850000), (2, 98425000), (4, 49212500), (5, 39370000), (8, 24606250), (10, 19685000), (16, 12303125), (20, 9842500), (25, 7874000), (31, 6350000), (40, 4921250), (50, 3937000), (62, 3175000), (80, 2460625), (100, 1968500), (124, 1587500), (125, 1574800), (127, 1550000), (155, 1270000), (200, 984250), (248, 793750), (250, 787400), (254, 775000), (310, 635000), (400, 492125), (496, 396875), (500, 393700), (508, 387500), (620, 317500), (625, 314960), (635, 310000), (775, 254000), (1000, 196850), (1016, 193750), (1240, 158750), (1250, 157480), (1270, 155000), (1550, 127000), (2000, 98425), (2032, 96875), (2480, 79375), (2500, 78740), (2540, 77500), (3100, 63500), (3125, 62992), (3175, 62000), (3875, 50800), (3937, 50000), (5000, 39370), (5080, 38750), (6200, 31750), (6250, 31496), (6350, 31000), (7750, 25400), (7874, 25000), (10000, 19685), (10160, 19375), (12400, 15875), (12500, 15748), (12700, 15500)]