20579040

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{461}}^1$

素因数の和:513

約数の個数: 144

約数和(自身を含む): 72648576

約数和(自身を除く): 52069536

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 96, 120, 124, 144, 155, 160, 180, 186, 240, 248, 279, 288, 310, 360, 372, 461, 465, 480, 496, 558, 620, 720, 744, 922, 930, 992, 1116, 1240, 1383, 1395, 1440, 1488, 1844, 1860, 2232, 2305, 2480, 2766, 2790, 2976, 3688, 3720, 4149, 4464, 4610, 4960, 5532, 5580, 6915, 7376, 7440, 8298, 8928, 9220, 11064, 11160, 13830, 14291, 14752, 14880, 16596, 18440, 20745, 22128, 22320, 27660, 28582, 33192, 36880, 41490, 42873, 44256, 44640, 55320, 57164, 66384, 71455, 73760, 82980, 85746, 110640, 114328, 128619, 132768, 142910, 165960, 171492, 214365, 221280, 228656, 257238, 285820, 331920, 342984, 428730, 457312, 514476, 571640, 643095, 663840, 685968, 857460, 1028952, 1143280, 1286190, 1371936, 1714920, 2057904, 2286560, 2572380, 3429840, 4115808, 5144760, 6859680, 10289520, 20579040]

約数ペア:

[(1, 20579040), (2, 10289520), (3, 6859680), (4, 5144760), (5, 4115808), (6, 3429840), (8, 2572380), (9, 2286560), (10, 2057904), (12, 1714920), (15, 1371936), (16, 1286190), (18, 1143280), (20, 1028952), (24, 857460), (30, 685968), (31, 663840), (32, 643095), (36, 571640), (40, 514476), (45, 457312), (48, 428730), (60, 342984), (62, 331920), (72, 285820), (80, 257238), (90, 228656), (93, 221280), (96, 214365), (120, 171492), (124, 165960), (144, 142910), (155, 132768), (160, 128619), (180, 114328), (186, 110640), (240, 85746), (248, 82980), (279, 73760), (288, 71455), (310, 66384), (360, 57164), (372, 55320), (461, 44640), (465, 44256), (480, 42873), (496, 41490), (558, 36880), (620, 33192), (720, 28582), (744, 27660), (922, 22320), (930, 22128), (992, 20745), (1116, 18440), (1240, 16596), (1383, 14880), (1395, 14752), (1440, 14291), (1488, 13830), (1844, 11160), (1860, 11064), (2232, 9220), (2305, 8928), (2480, 8298), (2766, 7440), (2790, 7376), (2976, 6915), (3688, 5580), (3720, 5532), (4149, 4960), (4464, 4610)]