81841340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{4603}}^1$

素因数の和:4746

約数の個数: 48

約数和(自身を含む): 198008832

約数和(自身を除く): 116167492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 254, 508, 635, 889, 1270, 1778, 2540, 3556, 4445, 4603, 8890, 9206, 17780, 18412, 23015, 32221, 46030, 64442, 92060, 128884, 161105, 322210, 584581, 644420, 1169162, 2338324, 2922905, 4092067, 5845810, 8184134, 11691620, 16368268, 20460335, 40920670, 81841340]

約数ペア:

[(1, 81841340), (2, 40920670), (4, 20460335), (5, 16368268), (7, 11691620), (10, 8184134), (14, 5845810), (20, 4092067), (28, 2922905), (35, 2338324), (70, 1169162), (127, 644420), (140, 584581), (254, 322210), (508, 161105), (635, 128884), (889, 92060), (1270, 64442), (1778, 46030), (2540, 32221), (3556, 23015), (4445, 18412), (4603, 17780), (8890, 9206)]