20980224

素因数分解:

$2^9\times 3^2\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:210

約数の個数: 120

約数和(自身を含む): 63037260

約数和(自身を除く): 42057036

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 29, 32, 36, 48, 58, 64, 72, 87, 96, 116, 128, 144, 157, 174, 192, 232, 256, 261, 288, 314, 348, 384, 464, 471, 512, 522, 576, 628, 696, 768, 928, 942, 1044, 1152, 1256, 1392, 1413, 1536, 1856, 1884, 2088, 2304, 2512, 2784, 2826, 3712, 3768, 4176, 4553, 4608, 5024, 5568, 5652, 7424, 7536, 8352, 9106, 10048, 11136, 11304, 13659, 14848, 15072, 16704, 18212, 20096, 22272, 22608, 27318, 30144, 33408, 36424, 40192, 40977, 44544, 45216, 54636, 60288, 66816, 72848, 80384, 81954, 90432, 109272, 120576, 133632, 145696, 163908, 180864, 218544, 241152, 291392, 327816, 361728, 437088, 582784, 655632, 723456, 874176, 1165568, 1311264, 1748352, 2331136, 2622528, 3496704, 5245056, 6993408, 10490112, 20980224]

約数ペア:

[(1, 20980224), (2, 10490112), (3, 6993408), (4, 5245056), (6, 3496704), (8, 2622528), (9, 2331136), (12, 1748352), (16, 1311264), (18, 1165568), (24, 874176), (29, 723456), (32, 655632), (36, 582784), (48, 437088), (58, 361728), (64, 327816), (72, 291392), (87, 241152), (96, 218544), (116, 180864), (128, 163908), (144, 145696), (157, 133632), (174, 120576), (192, 109272), (232, 90432), (256, 81954), (261, 80384), (288, 72848), (314, 66816), (348, 60288), (384, 54636), (464, 45216), (471, 44544), (512, 40977), (522, 40192), (576, 36424), (628, 33408), (696, 30144), (768, 27318), (928, 22608), (942, 22272), (1044, 20096), (1152, 18212), (1256, 16704), (1392, 15072), (1413, 14848), (1536, 13659), (1856, 11304), (1884, 11136), (2088, 10048), (2304, 9106), (2512, 8352), (2784, 7536), (2826, 7424), (3712, 5652), (3768, 5568), (4176, 5024), (4553, 4608)]