81738360

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20641}}^1$

素因数の和:20669

約数の個数: 96

約数和(自身を含む): 289813680

約数和(自身を除く): 208075320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 165, 180, 198, 220, 264, 330, 360, 396, 440, 495, 660, 792, 990, 1320, 1980, 3960, 20641, 41282, 61923, 82564, 103205, 123846, 165128, 185769, 206410, 227051, 247692, 309615, 371538, 412820, 454102, 495384, 619230, 681153, 743076, 825640, 908204, 928845, 1135255, 1238460, 1362306, 1486152, 1816408, 1857690, 2043459, 2270510, 2476920, 2724612, 3405765, 3715380, 4086918, 4541020, 5449224, 6811530, 7430760, 8173836, 9082040, 10217295, 13623060, 16347672, 20434590, 27246120, 40869180, 81738360]

約数ペア:

[(1, 81738360), (2, 40869180), (3, 27246120), (4, 20434590), (5, 16347672), (6, 13623060), (8, 10217295), (9, 9082040), (10, 8173836), (11, 7430760), (12, 6811530), (15, 5449224), (18, 4541020), (20, 4086918), (22, 3715380), (24, 3405765), (30, 2724612), (33, 2476920), (36, 2270510), (40, 2043459), (44, 1857690), (45, 1816408), (55, 1486152), (60, 1362306), (66, 1238460), (72, 1135255), (88, 928845), (90, 908204), (99, 825640), (110, 743076), (120, 681153), (132, 619230), (165, 495384), (180, 454102), (198, 412820), (220, 371538), (264, 309615), (330, 247692), (360, 227051), (396, 206410), (440, 185769), (495, 165128), (660, 123846), (792, 103205), (990, 82564), (1320, 61923), (1980, 41282), (3960, 20641)]