21725760

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:141

約数の個数: 224

約数和(自身を含む): 81637632

約数和(自身を除く): 59911872

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 53, 56, 60, 61, 64, 70, 80, 84, 96, 105, 106, 112, 120, 122, 140, 159, 160, 168, 183, 192, 210, 212, 224, 240, 244, 265, 280, 305, 318, 320, 336, 366, 371, 420, 424, 427, 448, 480, 488, 530, 560, 610, 636, 672, 732, 742, 795, 840, 848, 854, 915, 960, 976, 1060, 1113, 1120, 1220, 1272, 1281, 1344, 1464, 1484, 1590, 1680, 1696, 1708, 1830, 1855, 1952, 2120, 2135, 2226, 2240, 2440, 2544, 2562, 2928, 2968, 3180, 3233, 3360, 3392, 3416, 3660, 3710, 3904, 4240, 4270, 4452, 4880, 5088, 5124, 5565, 5856, 5936, 6360, 6405, 6466, 6720, 6832, 7320, 7420, 8480, 8540, 8904, 9699, 9760, 10176, 10248, 11130, 11712, 11872, 12720, 12810, 12932, 13664, 14640, 14840, 16165, 16960, 17080, 17808, 19398, 19520, 20496, 22260, 22631, 23744, 25440, 25620, 25864, 27328, 29280, 29680, 32330, 34160, 35616, 38796, 40992, 44520, 45262, 48495, 50880, 51240, 51728, 58560, 59360, 64660, 67893, 68320, 71232, 77592, 81984, 89040, 90524, 96990, 102480, 103456, 113155, 118720, 129320, 135786, 136640, 155184, 178080, 181048, 193980, 204960, 206912, 226310, 258640, 271572, 310368, 339465, 356160, 362096, 387960, 409920, 452620, 517280, 543144, 620736, 678930, 724192, 775920, 905240, 1034560, 1086288, 1357860, 1448384, 1551840, 1810480, 2172576, 2715720, 3103680, 3620960, 4345152, 5431440, 7241920, 10862880, 21725760]

約数ペア:

[(1, 21725760), (2, 10862880), (3, 7241920), (4, 5431440), (5, 4345152), (6, 3620960), (7, 3103680), (8, 2715720), (10, 2172576), (12, 1810480), (14, 1551840), (15, 1448384), (16, 1357860), (20, 1086288), (21, 1034560), (24, 905240), (28, 775920), (30, 724192), (32, 678930), (35, 620736), (40, 543144), (42, 517280), (48, 452620), (53, 409920), (56, 387960), (60, 362096), (61, 356160), (64, 339465), (70, 310368), (80, 271572), (84, 258640), (96, 226310), (105, 206912), (106, 204960), (112, 193980), (120, 181048), (122, 178080), (140, 155184), (159, 136640), (160, 135786), (168, 129320), (183, 118720), (192, 113155), (210, 103456), (212, 102480), (224, 96990), (240, 90524), (244, 89040), (265, 81984), (280, 77592), (305, 71232), (318, 68320), (320, 67893), (336, 64660), (366, 59360), (371, 58560), (420, 51728), (424, 51240), (427, 50880), (448, 48495), (480, 45262), (488, 44520), (530, 40992), (560, 38796), (610, 35616), (636, 34160), (672, 32330), (732, 29680), (742, 29280), (795, 27328), (840, 25864), (848, 25620), (854, 25440), (915, 23744), (960, 22631), (976, 22260), (1060, 20496), (1113, 19520), (1120, 19398), (1220, 17808), (1272, 17080), (1281, 16960), (1344, 16165), (1464, 14840), (1484, 14640), (1590, 13664), (1680, 12932), (1696, 12810), (1708, 12720), (1830, 11872), (1855, 11712), (1952, 11130), (2120, 10248), (2135, 10176), (2226, 9760), (2240, 9699), (2440, 8904), (2544, 8540), (2562, 8480), (2928, 7420), (2968, 7320), (3180, 6832), (3233, 6720), (3360, 6466), (3392, 6405), (3416, 6360), (3660, 5936), (3710, 5856), (3904, 5565), (4240, 5124), (4270, 5088), (4452, 4880)]