81640278

素因数分解:

$2^1\times 3^3\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1409}}^1$

素因数の和:1486

約数の個数: 64

約数和(自身を含む): 192888000

約数和(自身を除く): 111247722

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 37, 54, 58, 74, 87, 111, 174, 222, 261, 333, 522, 666, 783, 999, 1073, 1409, 1566, 1998, 2146, 2818, 3219, 4227, 6438, 8454, 9657, 12681, 19314, 25362, 28971, 38043, 40861, 52133, 57942, 76086, 81722, 104266, 122583, 156399, 245166, 312798, 367749, 469197, 735498, 938394, 1103247, 1407591, 1511857, 2206494, 2815182, 3023714, 4535571, 9071142, 13606713, 27213426, 40820139, 81640278]

約数ペア:

[(1, 81640278), (2, 40820139), (3, 27213426), (6, 13606713), (9, 9071142), (18, 4535571), (27, 3023714), (29, 2815182), (37, 2206494), (54, 1511857), (58, 1407591), (74, 1103247), (87, 938394), (111, 735498), (174, 469197), (222, 367749), (261, 312798), (333, 245166), (522, 156399), (666, 122583), (783, 104266), (999, 81722), (1073, 76086), (1409, 57942), (1566, 52133), (1998, 40861), (2146, 38043), (2818, 28971), (3219, 25362), (4227, 19314), (6438, 12681), (8454, 9657)]