2581810

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{479}}^1$

素因数の和:511

約数の個数: 48

約数和(自身を含む): 5909760

約数和(自身を除く): 3327950

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 385, 479, 490, 539, 770, 958, 1078, 2395, 2695, 3353, 4790, 5269, 5390, 6706, 10538, 16765, 23471, 26345, 33530, 36883, 46942, 52690, 73766, 117355, 184415, 234710, 258181, 368830, 516362, 1290905, 2581810]

約数ペア:

[(1, 2581810), (2, 1290905), (5, 516362), (7, 368830), (10, 258181), (11, 234710), (14, 184415), (22, 117355), (35, 73766), (49, 52690), (55, 46942), (70, 36883), (77, 33530), (98, 26345), (110, 23471), (154, 16765), (245, 10538), (385, 6706), (479, 5390), (490, 5269), (539, 4790), (770, 3353), (958, 2695), (1078, 2395)]