81323280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{631}}^1$

素因数の和:829

約数の個数: 120

約数和(自身を含む): 275071680

約数和(自身を除く): 193748400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 179, 180, 240, 358, 360, 537, 631, 716, 720, 895, 1074, 1262, 1432, 1611, 1790, 1893, 2148, 2524, 2685, 2864, 3155, 3222, 3580, 3786, 4296, 5048, 5370, 5679, 6310, 6444, 7160, 7572, 8055, 8592, 9465, 10096, 10740, 11358, 12620, 12888, 14320, 15144, 16110, 18930, 21480, 22716, 25240, 25776, 28395, 30288, 32220, 37860, 42960, 45432, 50480, 56790, 64440, 75720, 90864, 112949, 113580, 128880, 151440, 225898, 227160, 338847, 451796, 454320, 564745, 677694, 903592, 1016541, 1129490, 1355388, 1694235, 1807184, 2033082, 2258980, 2710776, 3388470, 4066164, 4517960, 5082705, 5421552, 6776940, 8132328, 9035920, 10165410, 13553880, 16264656, 20330820, 27107760, 40661640, 81323280]

約数ペア:

[(1, 81323280), (2, 40661640), (3, 27107760), (4, 20330820), (5, 16264656), (6, 13553880), (8, 10165410), (9, 9035920), (10, 8132328), (12, 6776940), (15, 5421552), (16, 5082705), (18, 4517960), (20, 4066164), (24, 3388470), (30, 2710776), (36, 2258980), (40, 2033082), (45, 1807184), (48, 1694235), (60, 1355388), (72, 1129490), (80, 1016541), (90, 903592), (120, 677694), (144, 564745), (179, 454320), (180, 451796), (240, 338847), (358, 227160), (360, 225898), (537, 151440), (631, 128880), (716, 113580), (720, 112949), (895, 90864), (1074, 75720), (1262, 64440), (1432, 56790), (1611, 50480), (1790, 45432), (1893, 42960), (2148, 37860), (2524, 32220), (2685, 30288), (2864, 28395), (3155, 25776), (3222, 25240), (3580, 22716), (3786, 21480), (4296, 18930), (5048, 16110), (5370, 15144), (5679, 14320), (6310, 12888), (6444, 12620), (7160, 11358), (7572, 10740), (8055, 10096), (8592, 9465)]