81327240

素因数分解:

$2^3\times 3^6\times 5^1\times {\mathrm{2789}}^1$

素因数の和:2818

約数の個数: 112

約数和(自身を含む): 274452300

約数和(自身を除く): 193125060

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, 2789, 2916, 3240, 3645, 4860, 5578, 5832, 7290, 8367, 9720, 11156, 13945, 14580, 16734, 22312, 25101, 27890, 29160, 33468, 41835, 50202, 55780, 66936, 75303, 83670, 100404, 111560, 125505, 150606, 167340, 200808, 225909, 251010, 301212, 334680, 376515, 451818, 502020, 602424, 677727, 753030, 903636, 1004040, 1129545, 1355454, 1506060, 1807272, 2033181, 2259090, 2710908, 3012120, 3388635, 4066362, 4518180, 5421816, 6777270, 8132724, 9036360, 10165905, 13554540, 16265448, 20331810, 27109080, 40663620, 81327240]

約数ペア:

[(1, 81327240), (2, 40663620), (3, 27109080), (4, 20331810), (5, 16265448), (6, 13554540), (8, 10165905), (9, 9036360), (10, 8132724), (12, 6777270), (15, 5421816), (18, 4518180), (20, 4066362), (24, 3388635), (27, 3012120), (30, 2710908), (36, 2259090), (40, 2033181), (45, 1807272), (54, 1506060), (60, 1355454), (72, 1129545), (81, 1004040), (90, 903636), (108, 753030), (120, 677727), (135, 602424), (162, 502020), (180, 451818), (216, 376515), (243, 334680), (270, 301212), (324, 251010), (360, 225909), (405, 200808), (486, 167340), (540, 150606), (648, 125505), (729, 111560), (810, 100404), (972, 83670), (1080, 75303), (1215, 66936), (1458, 55780), (1620, 50202), (1944, 41835), (2430, 33468), (2789, 29160), (2916, 27890), (3240, 25101), (3645, 22312), (4860, 16734), (5578, 14580), (5832, 13945), (7290, 11156), (8367, 9720)]