81999836

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^2$

素因数の和:330

約数の個数: 36

約数和(自身を含む): 152945856

約数和(自身を除く): 70946020

約数列:

[1, 2, 4, 31, 41, 62, 82, 124, 127, 164, 254, 508, 1271, 2542, 3937, 5084, 5207, 7874, 10414, 15748, 16129, 20828, 32258, 64516, 161417, 322834, 499999, 645668, 661289, 999998, 1322578, 1999996, 2645156, 20499959, 40999918, 81999836]

約数ペア:

[(1, 81999836), (2, 40999918), (4, 20499959), (31, 2645156), (41, 1999996), (62, 1322578), (82, 999998), (124, 661289), (127, 645668), (164, 499999), (254, 322834), (508, 161417), (1271, 64516), (2542, 32258), (3937, 20828), (5084, 16129), (5207, 15748), (7874, 10414)]