20954880

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1$

素因数の和:151

約数の個数: 216

約数和(自身を含む): 77483952

約数和(自身を除く): 56529072

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 32, 34, 36, 40, 45, 48, 51, 60, 64, 68, 72, 80, 85, 90, 96, 102, 107, 120, 128, 136, 144, 153, 160, 170, 180, 192, 204, 214, 240, 255, 256, 272, 288, 306, 320, 321, 340, 360, 384, 408, 428, 480, 510, 535, 544, 576, 612, 640, 642, 680, 720, 765, 768, 816, 856, 960, 963, 1020, 1070, 1088, 1152, 1224, 1280, 1284, 1360, 1440, 1530, 1605, 1632, 1712, 1819, 1920, 1926, 2040, 2140, 2176, 2304, 2448, 2568, 2720, 2880, 3060, 3210, 3264, 3424, 3638, 3840, 3852, 4080, 4280, 4352, 4815, 4896, 5136, 5440, 5457, 5760, 6120, 6420, 6528, 6848, 7276, 7704, 8160, 8560, 9095, 9630, 9792, 10272, 10880, 10914, 11520, 12240, 12840, 13056, 13696, 14552, 15408, 16320, 16371, 17120, 18190, 19260, 19584, 20544, 21760, 21828, 24480, 25680, 27285, 27392, 29104, 30816, 32640, 32742, 34240, 36380, 38520, 39168, 41088, 43656, 48960, 51360, 54570, 58208, 61632, 65280, 65484, 68480, 72760, 77040, 81855, 82176, 87312, 97920, 102720, 109140, 116416, 123264, 130968, 136960, 145520, 154080, 163710, 174624, 195840, 205440, 218280, 232832, 246528, 261936, 291040, 308160, 327420, 349248, 410880, 436560, 465664, 523872, 582080, 616320, 654840, 698496, 873120, 1047744, 1164160, 1232640, 1309680, 1396992, 1746240, 2095488, 2328320, 2619360, 3492480, 4190976, 5238720, 6984960, 10477440, 20954880]

約数ペア:

[(1, 20954880), (2, 10477440), (3, 6984960), (4, 5238720), (5, 4190976), (6, 3492480), (8, 2619360), (9, 2328320), (10, 2095488), (12, 1746240), (15, 1396992), (16, 1309680), (17, 1232640), (18, 1164160), (20, 1047744), (24, 873120), (30, 698496), (32, 654840), (34, 616320), (36, 582080), (40, 523872), (45, 465664), (48, 436560), (51, 410880), (60, 349248), (64, 327420), (68, 308160), (72, 291040), (80, 261936), (85, 246528), (90, 232832), (96, 218280), (102, 205440), (107, 195840), (120, 174624), (128, 163710), (136, 154080), (144, 145520), (153, 136960), (160, 130968), (170, 123264), (180, 116416), (192, 109140), (204, 102720), (214, 97920), (240, 87312), (255, 82176), (256, 81855), (272, 77040), (288, 72760), (306, 68480), (320, 65484), (321, 65280), (340, 61632), (360, 58208), (384, 54570), (408, 51360), (428, 48960), (480, 43656), (510, 41088), (535, 39168), (544, 38520), (576, 36380), (612, 34240), (640, 32742), (642, 32640), (680, 30816), (720, 29104), (765, 27392), (768, 27285), (816, 25680), (856, 24480), (960, 21828), (963, 21760), (1020, 20544), (1070, 19584), (1088, 19260), (1152, 18190), (1224, 17120), (1280, 16371), (1284, 16320), (1360, 15408), (1440, 14552), (1530, 13696), (1605, 13056), (1632, 12840), (1712, 12240), (1819, 11520), (1920, 10914), (1926, 10880), (2040, 10272), (2140, 9792), (2176, 9630), (2304, 9095), (2448, 8560), (2568, 8160), (2720, 7704), (2880, 7276), (3060, 6848), (3210, 6528), (3264, 6420), (3424, 6120), (3638, 5760), (3840, 5457), (3852, 5440), (4080, 5136), (4280, 4896), (4352, 4815)]