81381600

素因数分解:

$2^5\times 3^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:242

約数の個数: 216

約数和(自身を含む): 292481280

約数和(自身を除く): 211099680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 32, 36, 40, 45, 48, 50, 60, 72, 75, 80, 89, 90, 96, 100, 120, 127, 144, 150, 160, 178, 180, 200, 225, 240, 254, 267, 288, 300, 356, 360, 381, 400, 445, 450, 480, 508, 534, 600, 635, 712, 720, 762, 800, 801, 890, 900, 1016, 1068, 1143, 1200, 1270, 1335, 1424, 1440, 1524, 1602, 1780, 1800, 1905, 2032, 2136, 2225, 2286, 2400, 2540, 2670, 2848, 3048, 3175, 3204, 3560, 3600, 3810, 4005, 4064, 4272, 4450, 4572, 5080, 5340, 5715, 6096, 6350, 6408, 6675, 7120, 7200, 7620, 8010, 8544, 8900, 9144, 9525, 10160, 10680, 11303, 11430, 12192, 12700, 12816, 13350, 14240, 15240, 16020, 17800, 18288, 19050, 20025, 20320, 21360, 22606, 22860, 25400, 25632, 26700, 28575, 30480, 32040, 33909, 35600, 36576, 38100, 40050, 42720, 45212, 45720, 50800, 53400, 56515, 57150, 60960, 64080, 67818, 71200, 76200, 80100, 90424, 91440, 101600, 101727, 106800, 113030, 114300, 128160, 135636, 152400, 160200, 169545, 180848, 182880, 203454, 213600, 226060, 228600, 271272, 282575, 304800, 320400, 339090, 361696, 406908, 452120, 457200, 508635, 542544, 565150, 640800, 678180, 813816, 847725, 904240, 914400, 1017270, 1085088, 1130300, 1356360, 1627632, 1695450, 1808480, 2034540, 2260600, 2543175, 2712720, 3255264, 3390900, 4069080, 4521200, 5086350, 5425440, 6781800, 8138160, 9042400, 10172700, 13563600, 16276320, 20345400, 27127200, 40690800, 81381600]

約数ペア:

[(1, 81381600), (2, 40690800), (3, 27127200), (4, 20345400), (5, 16276320), (6, 13563600), (8, 10172700), (9, 9042400), (10, 8138160), (12, 6781800), (15, 5425440), (16, 5086350), (18, 4521200), (20, 4069080), (24, 3390900), (25, 3255264), (30, 2712720), (32, 2543175), (36, 2260600), (40, 2034540), (45, 1808480), (48, 1695450), (50, 1627632), (60, 1356360), (72, 1130300), (75, 1085088), (80, 1017270), (89, 914400), (90, 904240), (96, 847725), (100, 813816), (120, 678180), (127, 640800), (144, 565150), (150, 542544), (160, 508635), (178, 457200), (180, 452120), (200, 406908), (225, 361696), (240, 339090), (254, 320400), (267, 304800), (288, 282575), (300, 271272), (356, 228600), (360, 226060), (381, 213600), (400, 203454), (445, 182880), (450, 180848), (480, 169545), (508, 160200), (534, 152400), (600, 135636), (635, 128160), (712, 114300), (720, 113030), (762, 106800), (800, 101727), (801, 101600), (890, 91440), (900, 90424), (1016, 80100), (1068, 76200), (1143, 71200), (1200, 67818), (1270, 64080), (1335, 60960), (1424, 57150), (1440, 56515), (1524, 53400), (1602, 50800), (1780, 45720), (1800, 45212), (1905, 42720), (2032, 40050), (2136, 38100), (2225, 36576), (2286, 35600), (2400, 33909), (2540, 32040), (2670, 30480), (2848, 28575), (3048, 26700), (3175, 25632), (3204, 25400), (3560, 22860), (3600, 22606), (3810, 21360), (4005, 20320), (4064, 20025), (4272, 19050), (4450, 18288), (4572, 17800), (5080, 16020), (5340, 15240), (5715, 14240), (6096, 13350), (6350, 12816), (6408, 12700), (6675, 12192), (7120, 11430), (7200, 11303), (7620, 10680), (8010, 10160), (8544, 9525), (8900, 9144)]