280309760

素因数分解:

$2^{12}\times 5^1\times {\mathrm{13687}}^1$

素因数の和:13716

約数の個数: 52

約数和(自身を含む): 672710448

約数和(自身を除く): 392400688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 4096, 5120, 10240, 13687, 20480, 27374, 54748, 68435, 109496, 136870, 218992, 273740, 437984, 547480, 875968, 1094960, 1751936, 2189920, 3503872, 4379840, 7007744, 8759680, 14015488, 17519360, 28030976, 35038720, 56061952, 70077440, 140154880, 280309760]

約数ペア:

[(1, 280309760), (2, 140154880), (4, 70077440), (5, 56061952), (8, 35038720), (10, 28030976), (16, 17519360), (20, 14015488), (32, 8759680), (40, 7007744), (64, 4379840), (80, 3503872), (128, 2189920), (160, 1751936), (256, 1094960), (320, 875968), (512, 547480), (640, 437984), (1024, 273740), (1280, 218992), (2048, 136870), (2560, 109496), (4096, 68435), (5120, 54748), (10240, 27374), (13687, 20480)]