80685720

素因数分解:

$2^3\times 3^6\times 5^1\times {\mathrm{2767}}^1$

素因数の和:2796

約数の個数: 112

約数和(自身を含む): 272288160

約数和(自身を除く): 191602440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 729, 810, 972, 1080, 1215, 1458, 1620, 1944, 2430, 2767, 2916, 3240, 3645, 4860, 5534, 5832, 7290, 8301, 9720, 11068, 13835, 14580, 16602, 22136, 24903, 27670, 29160, 33204, 41505, 49806, 55340, 66408, 74709, 83010, 99612, 110680, 124515, 149418, 166020, 199224, 224127, 249030, 298836, 332040, 373545, 448254, 498060, 597672, 672381, 747090, 896508, 996120, 1120635, 1344762, 1494180, 1793016, 2017143, 2241270, 2689524, 2988360, 3361905, 4034286, 4482540, 5379048, 6723810, 8068572, 8965080, 10085715, 13447620, 16137144, 20171430, 26895240, 40342860, 80685720]

約数ペア:

[(1, 80685720), (2, 40342860), (3, 26895240), (4, 20171430), (5, 16137144), (6, 13447620), (8, 10085715), (9, 8965080), (10, 8068572), (12, 6723810), (15, 5379048), (18, 4482540), (20, 4034286), (24, 3361905), (27, 2988360), (30, 2689524), (36, 2241270), (40, 2017143), (45, 1793016), (54, 1494180), (60, 1344762), (72, 1120635), (81, 996120), (90, 896508), (108, 747090), (120, 672381), (135, 597672), (162, 498060), (180, 448254), (216, 373545), (243, 332040), (270, 298836), (324, 249030), (360, 224127), (405, 199224), (486, 166020), (540, 149418), (648, 124515), (729, 110680), (810, 99612), (972, 83010), (1080, 74709), (1215, 66408), (1458, 55340), (1620, 49806), (1944, 41505), (2430, 33204), (2767, 29160), (2916, 27670), (3240, 24903), (3645, 22136), (4860, 16602), (5534, 14580), (5832, 13835), (7290, 11068), (8301, 9720)]