20416320

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:182

約数の個数: 224

約数和(自身を含む): 76809600

約数和(自身を除く): 56393280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 32, 34, 36, 40, 45, 48, 51, 54, 60, 64, 68, 72, 80, 85, 90, 96, 102, 108, 120, 135, 136, 139, 144, 153, 160, 170, 180, 192, 204, 216, 240, 255, 270, 272, 278, 288, 306, 320, 340, 360, 408, 417, 432, 459, 480, 510, 540, 544, 556, 576, 612, 680, 695, 720, 765, 816, 834, 864, 918, 960, 1020, 1080, 1088, 1112, 1224, 1251, 1360, 1390, 1440, 1530, 1632, 1668, 1728, 1836, 2040, 2085, 2160, 2224, 2295, 2363, 2448, 2502, 2720, 2780, 2880, 3060, 3264, 3336, 3672, 3753, 4080, 4170, 4320, 4448, 4590, 4726, 4896, 5004, 5440, 5560, 6120, 6255, 6672, 7089, 7344, 7506, 8160, 8340, 8640, 8896, 9180, 9452, 9792, 10008, 11120, 11815, 12240, 12510, 13344, 14178, 14688, 15012, 16320, 16680, 18360, 18765, 18904, 20016, 21267, 22240, 23630, 24480, 25020, 26688, 28356, 29376, 30024, 33360, 35445, 36720, 37530, 37808, 40032, 42534, 44480, 47260, 48960, 50040, 56712, 60048, 63801, 66720, 70890, 73440, 75060, 75616, 80064, 85068, 94520, 100080, 106335, 113424, 120096, 127602, 133440, 141780, 146880, 150120, 151232, 170136, 189040, 200160, 212670, 226848, 240192, 255204, 283560, 300240, 319005, 340272, 378080, 400320, 425340, 453696, 510408, 567120, 600480, 638010, 680544, 756160, 850680, 1020816, 1134240, 1200960, 1276020, 1361088, 1701360, 2041632, 2268480, 2552040, 3402720, 4083264, 5104080, 6805440, 10208160, 20416320]

約数ペア:

[(1, 20416320), (2, 10208160), (3, 6805440), (4, 5104080), (5, 4083264), (6, 3402720), (8, 2552040), (9, 2268480), (10, 2041632), (12, 1701360), (15, 1361088), (16, 1276020), (17, 1200960), (18, 1134240), (20, 1020816), (24, 850680), (27, 756160), (30, 680544), (32, 638010), (34, 600480), (36, 567120), (40, 510408), (45, 453696), (48, 425340), (51, 400320), (54, 378080), (60, 340272), (64, 319005), (68, 300240), (72, 283560), (80, 255204), (85, 240192), (90, 226848), (96, 212670), (102, 200160), (108, 189040), (120, 170136), (135, 151232), (136, 150120), (139, 146880), (144, 141780), (153, 133440), (160, 127602), (170, 120096), (180, 113424), (192, 106335), (204, 100080), (216, 94520), (240, 85068), (255, 80064), (270, 75616), (272, 75060), (278, 73440), (288, 70890), (306, 66720), (320, 63801), (340, 60048), (360, 56712), (408, 50040), (417, 48960), (432, 47260), (459, 44480), (480, 42534), (510, 40032), (540, 37808), (544, 37530), (556, 36720), (576, 35445), (612, 33360), (680, 30024), (695, 29376), (720, 28356), (765, 26688), (816, 25020), (834, 24480), (864, 23630), (918, 22240), (960, 21267), (1020, 20016), (1080, 18904), (1088, 18765), (1112, 18360), (1224, 16680), (1251, 16320), (1360, 15012), (1390, 14688), (1440, 14178), (1530, 13344), (1632, 12510), (1668, 12240), (1728, 11815), (1836, 11120), (2040, 10008), (2085, 9792), (2160, 9452), (2224, 9180), (2295, 8896), (2363, 8640), (2448, 8340), (2502, 8160), (2720, 7506), (2780, 7344), (2880, 7089), (3060, 6672), (3264, 6255), (3336, 6120), (3672, 5560), (3753, 5440), (4080, 5004), (4170, 4896), (4320, 4726), (4448, 4590)]