20313784

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{977}}^1$

素因数の和:1119

約数の個数: 32

約数和(自身を含む): 40137120

約数和(自身を除く): 19823336

約数列:

[1, 2, 4, 8, 23, 46, 92, 113, 184, 226, 452, 904, 977, 1954, 2599, 3908, 5198, 7816, 10396, 20792, 22471, 44942, 89884, 110401, 179768, 220802, 441604, 883208, 2539223, 5078446, 10156892, 20313784]

約数ペア:

[(1, 20313784), (2, 10156892), (4, 5078446), (8, 2539223), (23, 883208), (46, 441604), (92, 220802), (113, 179768), (184, 110401), (226, 89884), (452, 44942), (904, 22471), (977, 20792), (1954, 10396), (2599, 7816), (3908, 5198)]