20453760

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:145

約数の個数: 192

約数和(自身を含む): 73036080

約数和(自身を除く): 52582320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 53, 60, 64, 67, 72, 80, 90, 96, 106, 120, 128, 134, 144, 159, 160, 180, 192, 201, 212, 240, 265, 268, 288, 318, 320, 335, 360, 384, 402, 424, 477, 480, 530, 536, 576, 603, 636, 640, 670, 720, 795, 804, 848, 954, 960, 1005, 1060, 1072, 1152, 1206, 1272, 1340, 1440, 1590, 1608, 1696, 1908, 1920, 2010, 2120, 2144, 2385, 2412, 2544, 2680, 2880, 3015, 3180, 3216, 3392, 3551, 3816, 4020, 4240, 4288, 4770, 4824, 5088, 5360, 5760, 6030, 6360, 6432, 6784, 7102, 7632, 8040, 8480, 8576, 9540, 9648, 10176, 10653, 10720, 12060, 12720, 12864, 14204, 15264, 16080, 16960, 17755, 19080, 19296, 20352, 21306, 21440, 24120, 25440, 25728, 28408, 30528, 31959, 32160, 33920, 35510, 38160, 38592, 42612, 42880, 48240, 50880, 53265, 56816, 61056, 63918, 64320, 71020, 76320, 77184, 85224, 96480, 101760, 106530, 113632, 127836, 128640, 142040, 152640, 159795, 170448, 192960, 213060, 227264, 255672, 284080, 305280, 319590, 340896, 385920, 426120, 454528, 511344, 568160, 639180, 681792, 852240, 1022688, 1136320, 1278360, 1363584, 1704480, 2045376, 2272640, 2556720, 3408960, 4090752, 5113440, 6817920, 10226880, 20453760]

約数ペア:

[(1, 20453760), (2, 10226880), (3, 6817920), (4, 5113440), (5, 4090752), (6, 3408960), (8, 2556720), (9, 2272640), (10, 2045376), (12, 1704480), (15, 1363584), (16, 1278360), (18, 1136320), (20, 1022688), (24, 852240), (30, 681792), (32, 639180), (36, 568160), (40, 511344), (45, 454528), (48, 426120), (53, 385920), (60, 340896), (64, 319590), (67, 305280), (72, 284080), (80, 255672), (90, 227264), (96, 213060), (106, 192960), (120, 170448), (128, 159795), (134, 152640), (144, 142040), (159, 128640), (160, 127836), (180, 113632), (192, 106530), (201, 101760), (212, 96480), (240, 85224), (265, 77184), (268, 76320), (288, 71020), (318, 64320), (320, 63918), (335, 61056), (360, 56816), (384, 53265), (402, 50880), (424, 48240), (477, 42880), (480, 42612), (530, 38592), (536, 38160), (576, 35510), (603, 33920), (636, 32160), (640, 31959), (670, 30528), (720, 28408), (795, 25728), (804, 25440), (848, 24120), (954, 21440), (960, 21306), (1005, 20352), (1060, 19296), (1072, 19080), (1152, 17755), (1206, 16960), (1272, 16080), (1340, 15264), (1440, 14204), (1590, 12864), (1608, 12720), (1696, 12060), (1908, 10720), (1920, 10653), (2010, 10176), (2120, 9648), (2144, 9540), (2385, 8576), (2412, 8480), (2544, 8040), (2680, 7632), (2880, 7102), (3015, 6784), (3180, 6432), (3216, 6360), (3392, 6030), (3551, 5760), (3816, 5360), (4020, 5088), (4240, 4824), (4288, 4770)]