20531456

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{317}}^1$

素因数の和:367

約数の個数: 72

約数和(自身を含む): 46799424

約数和(自身を除く): 26267968

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 32, 44, 46, 64, 88, 92, 128, 176, 184, 253, 256, 317, 352, 368, 506, 634, 704, 736, 1012, 1268, 1408, 1472, 2024, 2536, 2816, 2944, 3487, 4048, 5072, 5888, 6974, 7291, 8096, 10144, 13948, 14582, 16192, 20288, 27896, 29164, 32384, 40576, 55792, 58328, 64768, 80201, 81152, 111584, 116656, 160402, 223168, 233312, 320804, 446336, 466624, 641608, 892672, 933248, 1283216, 1866496, 2566432, 5132864, 10265728, 20531456]

約数ペア:

[(1, 20531456), (2, 10265728), (4, 5132864), (8, 2566432), (11, 1866496), (16, 1283216), (22, 933248), (23, 892672), (32, 641608), (44, 466624), (46, 446336), (64, 320804), (88, 233312), (92, 223168), (128, 160402), (176, 116656), (184, 111584), (253, 81152), (256, 80201), (317, 64768), (352, 58328), (368, 55792), (506, 40576), (634, 32384), (704, 29164), (736, 27896), (1012, 20288), (1268, 16192), (1408, 14582), (1472, 13948), (2024, 10144), (2536, 8096), (2816, 7291), (2944, 6974), (3487, 5888), (4048, 5072)]