208593920

素因数分解:

$2^{10}\times 5^1\times {\mathrm{131}}^1\times {\mathrm{311}}^1$

素因数の和:467

約数の個数: 88

約数和(自身を含む): 505821888

約数和(自身を除く): 297227968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 131, 160, 256, 262, 311, 320, 512, 524, 622, 640, 655, 1024, 1048, 1244, 1280, 1310, 1555, 2096, 2488, 2560, 2620, 3110, 4192, 4976, 5120, 5240, 6220, 8384, 9952, 10480, 12440, 16768, 19904, 20960, 24880, 33536, 39808, 40741, 41920, 49760, 67072, 79616, 81482, 83840, 99520, 134144, 159232, 162964, 167680, 199040, 203705, 318464, 325928, 335360, 398080, 407410, 651856, 670720, 796160, 814820, 1303712, 1592320, 1629640, 2607424, 3259280, 5214848, 6518560, 10429696, 13037120, 20859392, 26074240, 41718784, 52148480, 104296960, 208593920]

約数ペア:

[(1, 208593920), (2, 104296960), (4, 52148480), (5, 41718784), (8, 26074240), (10, 20859392), (16, 13037120), (20, 10429696), (32, 6518560), (40, 5214848), (64, 3259280), (80, 2607424), (128, 1629640), (131, 1592320), (160, 1303712), (256, 814820), (262, 796160), (311, 670720), (320, 651856), (512, 407410), (524, 398080), (622, 335360), (640, 325928), (655, 318464), (1024, 203705), (1048, 199040), (1244, 167680), (1280, 162964), (1310, 159232), (1555, 134144), (2096, 99520), (2488, 83840), (2560, 81482), (2620, 79616), (3110, 67072), (4192, 49760), (4976, 41920), (5120, 40741), (5240, 39808), (6220, 33536), (8384, 24880), (9952, 20960), (10480, 19904), (12440, 16768)]