280228480

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{881}}^1$

素因数の和:978

約数の個数: 128

約数和(自身を含む): 777288960

約数和(自身を除く): 497060480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 71, 80, 112, 128, 140, 142, 160, 224, 280, 284, 320, 355, 448, 497, 560, 568, 640, 710, 881, 896, 994, 1120, 1136, 1420, 1762, 1988, 2240, 2272, 2485, 2840, 3524, 3976, 4405, 4480, 4544, 4970, 5680, 6167, 7048, 7952, 8810, 9088, 9940, 11360, 12334, 14096, 15904, 17620, 19880, 22720, 24668, 28192, 30835, 31808, 35240, 39760, 45440, 49336, 56384, 61670, 62551, 63616, 70480, 79520, 98672, 112768, 123340, 125102, 140960, 159040, 197344, 246680, 250204, 281920, 312755, 318080, 394688, 437857, 493360, 500408, 563840, 625510, 789376, 875714, 986720, 1000816, 1251020, 1751428, 1973440, 2001632, 2189285, 2502040, 3502856, 3946880, 4003264, 4378570, 5004080, 7005712, 8006528, 8757140, 10008160, 14011424, 17514280, 20016320, 28022848, 35028560, 40032640, 56045696, 70057120, 140114240, 280228480]

約数ペア:

[(1, 280228480), (2, 140114240), (4, 70057120), (5, 56045696), (7, 40032640), (8, 35028560), (10, 28022848), (14, 20016320), (16, 17514280), (20, 14011424), (28, 10008160), (32, 8757140), (35, 8006528), (40, 7005712), (56, 5004080), (64, 4378570), (70, 4003264), (71, 3946880), (80, 3502856), (112, 2502040), (128, 2189285), (140, 2001632), (142, 1973440), (160, 1751428), (224, 1251020), (280, 1000816), (284, 986720), (320, 875714), (355, 789376), (448, 625510), (497, 563840), (560, 500408), (568, 493360), (640, 437857), (710, 394688), (881, 318080), (896, 312755), (994, 281920), (1120, 250204), (1136, 246680), (1420, 197344), (1762, 159040), (1988, 140960), (2240, 125102), (2272, 123340), (2485, 112768), (2840, 98672), (3524, 79520), (3976, 70480), (4405, 63616), (4480, 62551), (4544, 61670), (4970, 56384), (5680, 49336), (6167, 45440), (7048, 39760), (7952, 35240), (8810, 31808), (9088, 30835), (9940, 28192), (11360, 24668), (12334, 22720), (14096, 19880), (15904, 17620)]