84381340

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 180633600

約数和(自身を除く): 96252260

約数列:

[1, 2, 4, 5, 10, 20, 127, 139, 239, 254, 278, 478, 508, 556, 635, 695, 956, 1195, 1270, 1390, 2390, 2540, 2780, 4780, 17653, 30353, 33221, 35306, 60706, 66442, 70612, 88265, 121412, 132884, 151765, 166105, 176530, 303530, 332210, 353060, 607060, 664420, 4219067, 8438134, 16876268, 21095335, 42190670, 84381340]

約数ペア:

[(1, 84381340), (2, 42190670), (4, 21095335), (5, 16876268), (10, 8438134), (20, 4219067), (127, 664420), (139, 607060), (239, 353060), (254, 332210), (278, 303530), (478, 176530), (508, 166105), (556, 151765), (635, 132884), (695, 121412), (956, 88265), (1195, 70612), (1270, 66442), (1390, 60706), (2390, 35306), (2540, 33221), (2780, 30353), (4780, 17653)]