81326520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1867}}^1$

素因数の和:1906

約数の個数: 144

約数和(自身を含む): 290679480

約数和(自身を除く): 209352960

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, 121, 132, 165, 180, 198, 220, 242, 264, 330, 360, 363, 396, 440, 484, 495, 605, 660, 726, 792, 968, 990, 1089, 1210, 1320, 1452, 1815, 1867, 1980, 2178, 2420, 2904, 3630, 3734, 3960, 4356, 4840, 5445, 5601, 7260, 7468, 8712, 9335, 10890, 11202, 14520, 14936, 16803, 18670, 20537, 21780, 22404, 28005, 33606, 37340, 41074, 43560, 44808, 56010, 61611, 67212, 74680, 82148, 84015, 102685, 112020, 123222, 134424, 164296, 168030, 184833, 205370, 224040, 225907, 246444, 308055, 336060, 369666, 410740, 451814, 492888, 616110, 672120, 677721, 739332, 821480, 903628, 924165, 1129535, 1232220, 1355442, 1478664, 1807256, 1848330, 2033163, 2259070, 2464440, 2710884, 3388605, 3696660, 4066326, 4518140, 5421768, 6777210, 7393320, 8132652, 9036280, 10165815, 13554420, 16265304, 20331630, 27108840, 40663260, 81326520]

約数ペア:

[(1, 81326520), (2, 40663260), (3, 27108840), (4, 20331630), (5, 16265304), (6, 13554420), (8, 10165815), (9, 9036280), (10, 8132652), (11, 7393320), (12, 6777210), (15, 5421768), (18, 4518140), (20, 4066326), (22, 3696660), (24, 3388605), (30, 2710884), (33, 2464440), (36, 2259070), (40, 2033163), (44, 1848330), (45, 1807256), (55, 1478664), (60, 1355442), (66, 1232220), (72, 1129535), (88, 924165), (90, 903628), (99, 821480), (110, 739332), (120, 677721), (121, 672120), (132, 616110), (165, 492888), (180, 451814), (198, 410740), (220, 369666), (242, 336060), (264, 308055), (330, 246444), (360, 225907), (363, 224040), (396, 205370), (440, 184833), (484, 168030), (495, 164296), (605, 134424), (660, 123222), (726, 112020), (792, 102685), (968, 84015), (990, 82148), (1089, 74680), (1210, 67212), (1320, 61611), (1452, 56010), (1815, 44808), (1867, 43560), (1980, 41074), (2178, 37340), (2420, 33606), (2904, 28005), (3630, 22404), (3734, 21780), (3960, 20537), (4356, 18670), (4840, 16803), (5445, 14936), (5601, 14520), (7260, 11202), (7468, 10890), (8712, 9335)]