61495000

素因数分解:

$2^3\times 5^4\times 7^2\times {\mathrm{251}}^1$

素因数の和:291

約数の個数: 120

約数和(自身を含む): 168274260

約数和(自身を除く): 106779260

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 125, 140, 175, 196, 200, 245, 250, 251, 280, 350, 392, 490, 500, 502, 625, 700, 875, 980, 1000, 1004, 1225, 1250, 1255, 1400, 1750, 1757, 1960, 2008, 2450, 2500, 2510, 3500, 3514, 4375, 4900, 5000, 5020, 6125, 6275, 7000, 7028, 8750, 8785, 9800, 10040, 12250, 12299, 12550, 14056, 17500, 17570, 24500, 24598, 25100, 30625, 31375, 35000, 35140, 43925, 49000, 49196, 50200, 61250, 61495, 62750, 70280, 87850, 98392, 122500, 122990, 125500, 156875, 175700, 219625, 245000, 245980, 251000, 307475, 313750, 351400, 439250, 491960, 614950, 627500, 878500, 1098125, 1229900, 1255000, 1537375, 1757000, 2196250, 2459800, 3074750, 4392500, 6149500, 7686875, 8785000, 12299000, 15373750, 30747500, 61495000]

約数ペア:

[(1, 61495000), (2, 30747500), (4, 15373750), (5, 12299000), (7, 8785000), (8, 7686875), (10, 6149500), (14, 4392500), (20, 3074750), (25, 2459800), (28, 2196250), (35, 1757000), (40, 1537375), (49, 1255000), (50, 1229900), (56, 1098125), (70, 878500), (98, 627500), (100, 614950), (125, 491960), (140, 439250), (175, 351400), (196, 313750), (200, 307475), (245, 251000), (250, 245980), (251, 245000), (280, 219625), (350, 175700), (392, 156875), (490, 125500), (500, 122990), (502, 122500), (625, 98392), (700, 87850), (875, 70280), (980, 62750), (1000, 61495), (1004, 61250), (1225, 50200), (1250, 49196), (1255, 49000), (1400, 43925), (1750, 35140), (1757, 35000), (1960, 31375), (2008, 30625), (2450, 25100), (2500, 24598), (2510, 24500), (3500, 17570), (3514, 17500), (4375, 14056), (4900, 12550), (5000, 12299), (5020, 12250), (6125, 10040), (6275, 9800), (7000, 8785), (7028, 8750)]