123481960

素因数分解:

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

素因数の和:527

約数の個数: 72

約数和(自身を含む): 324487890

約数和(自身を除く): 201005930

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 251, 280, 392, 490, 502, 980, 1004, 1255, 1757, 1960, 2008, 2510, 3514, 5020, 7028, 8785, 10040, 12299, 14056, 17570, 24598, 35140, 49196, 61495, 63001, 70280, 98392, 122990, 126002, 245980, 252004, 315005, 441007, 491960, 504008, 630010, 882014, 1260020, 1764028, 2205035, 2520040, 3087049, 3528056, 4410070, 6174098, 8820140, 12348196, 15435245, 17640280, 24696392, 30870490, 61740980, 123481960]

約数ペア:

[(1, 123481960), (2, 61740980), (4, 30870490), (5, 24696392), (7, 17640280), (8, 15435245), (10, 12348196), (14, 8820140), (20, 6174098), (28, 4410070), (35, 3528056), (40, 3087049), (49, 2520040), (56, 2205035), (70, 1764028), (98, 1260020), (140, 882014), (196, 630010), (245, 504008), (251, 491960), (280, 441007), (392, 315005), (490, 252004), (502, 245980), (980, 126002), (1004, 122990), (1255, 98392), (1757, 70280), (1960, 63001), (2008, 61495), (2510, 49196), (3514, 35140), (5020, 24598), (7028, 17570), (8785, 14056), (10040, 12299)]