20559840

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{211}}^1$

素因数の和:265

約数の個数: 192

約数和(自身を含む): 76930560

約数和(自身を除く): 56370720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 29, 30, 32, 35, 40, 42, 48, 56, 58, 60, 70, 80, 84, 87, 96, 105, 112, 116, 120, 140, 145, 160, 168, 174, 203, 210, 211, 224, 232, 240, 280, 290, 336, 348, 406, 420, 422, 435, 464, 480, 560, 580, 609, 633, 672, 696, 812, 840, 844, 870, 928, 1015, 1055, 1120, 1160, 1218, 1266, 1392, 1477, 1624, 1680, 1688, 1740, 2030, 2110, 2320, 2436, 2532, 2784, 2954, 3045, 3165, 3248, 3360, 3376, 3480, 4060, 4220, 4431, 4640, 4872, 5064, 5908, 6090, 6119, 6330, 6496, 6752, 6960, 7385, 8120, 8440, 8862, 9744, 10128, 11816, 12180, 12238, 12660, 13920, 14770, 16240, 16880, 17724, 18357, 19488, 20256, 22155, 23632, 24360, 24476, 25320, 29540, 30595, 32480, 33760, 35448, 36714, 42833, 44310, 47264, 48720, 48952, 50640, 59080, 61190, 70896, 73428, 85666, 88620, 91785, 97440, 97904, 101280, 118160, 122380, 128499, 141792, 146856, 171332, 177240, 183570, 195808, 214165, 236320, 244760, 256998, 293712, 342664, 354480, 367140, 428330, 489520, 513996, 587424, 642495, 685328, 708960, 734280, 856660, 979040, 1027992, 1284990, 1370656, 1468560, 1713320, 2055984, 2569980, 2937120, 3426640, 4111968, 5139960, 6853280, 10279920, 20559840]

約数ペア:

[(1, 20559840), (2, 10279920), (3, 6853280), (4, 5139960), (5, 4111968), (6, 3426640), (7, 2937120), (8, 2569980), (10, 2055984), (12, 1713320), (14, 1468560), (15, 1370656), (16, 1284990), (20, 1027992), (21, 979040), (24, 856660), (28, 734280), (29, 708960), (30, 685328), (32, 642495), (35, 587424), (40, 513996), (42, 489520), (48, 428330), (56, 367140), (58, 354480), (60, 342664), (70, 293712), (80, 256998), (84, 244760), (87, 236320), (96, 214165), (105, 195808), (112, 183570), (116, 177240), (120, 171332), (140, 146856), (145, 141792), (160, 128499), (168, 122380), (174, 118160), (203, 101280), (210, 97904), (211, 97440), (224, 91785), (232, 88620), (240, 85666), (280, 73428), (290, 70896), (336, 61190), (348, 59080), (406, 50640), (420, 48952), (422, 48720), (435, 47264), (464, 44310), (480, 42833), (560, 36714), (580, 35448), (609, 33760), (633, 32480), (672, 30595), (696, 29540), (812, 25320), (840, 24476), (844, 24360), (870, 23632), (928, 22155), (1015, 20256), (1055, 19488), (1120, 18357), (1160, 17724), (1218, 16880), (1266, 16240), (1392, 14770), (1477, 13920), (1624, 12660), (1680, 12238), (1688, 12180), (1740, 11816), (2030, 10128), (2110, 9744), (2320, 8862), (2436, 8440), (2532, 8120), (2784, 7385), (2954, 6960), (3045, 6752), (3165, 6496), (3248, 6330), (3360, 6119), (3376, 6090), (3480, 5908), (4060, 5064), (4220, 4872), (4431, 4640)]