87850000

素因数分解:

$2^4\times 5^5\times 7^1\times {\mathrm{251}}^1$

素因数の和:291

約数の個数: 120

約数和(自身を含む): 244109376

約数和(自身を除く): 156259376

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 125, 140, 175, 200, 250, 251, 280, 350, 400, 500, 502, 560, 625, 700, 875, 1000, 1004, 1250, 1255, 1400, 1750, 1757, 2000, 2008, 2500, 2510, 2800, 3125, 3500, 3514, 4016, 4375, 5000, 5020, 6250, 6275, 7000, 7028, 8750, 8785, 10000, 10040, 12500, 12550, 14000, 14056, 17500, 17570, 20080, 21875, 25000, 25100, 28112, 31375, 35000, 35140, 43750, 43925, 50000, 50200, 62750, 70000, 70280, 87500, 87850, 100400, 125500, 140560, 156875, 175000, 175700, 219625, 251000, 313750, 350000, 351400, 439250, 502000, 627500, 702800, 784375, 878500, 1098125, 1255000, 1568750, 1757000, 2196250, 2510000, 3137500, 3514000, 4392500, 5490625, 6275000, 8785000, 10981250, 12550000, 17570000, 21962500, 43925000, 87850000]

約数ペア:

[(1, 87850000), (2, 43925000), (4, 21962500), (5, 17570000), (7, 12550000), (8, 10981250), (10, 8785000), (14, 6275000), (16, 5490625), (20, 4392500), (25, 3514000), (28, 3137500), (35, 2510000), (40, 2196250), (50, 1757000), (56, 1568750), (70, 1255000), (80, 1098125), (100, 878500), (112, 784375), (125, 702800), (140, 627500), (175, 502000), (200, 439250), (250, 351400), (251, 350000), (280, 313750), (350, 251000), (400, 219625), (500, 175700), (502, 175000), (560, 156875), (625, 140560), (700, 125500), (875, 100400), (1000, 87850), (1004, 87500), (1250, 70280), (1255, 70000), (1400, 62750), (1750, 50200), (1757, 50000), (2000, 43925), (2008, 43750), (2500, 35140), (2510, 35000), (2800, 31375), (3125, 28112), (3500, 25100), (3514, 25000), (4016, 21875), (4375, 20080), (5000, 17570), (5020, 17500), (6250, 14056), (6275, 14000), (7000, 12550), (7028, 12500), (8750, 10040), (8785, 10000)]