20174864

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{751}}^1$

素因数の和:855

約数の個数: 40

約数和(自身を含む): 41402112

約数和(自身を除く): 21227248

約数列:

[1, 2, 4, 8, 16, 23, 46, 73, 92, 146, 184, 292, 368, 584, 751, 1168, 1502, 1679, 3004, 3358, 6008, 6716, 12016, 13432, 17273, 26864, 34546, 54823, 69092, 109646, 138184, 219292, 276368, 438584, 877168, 1260929, 2521858, 5043716, 10087432, 20174864]

約数ペア:

[(1, 20174864), (2, 10087432), (4, 5043716), (8, 2521858), (16, 1260929), (23, 877168), (46, 438584), (73, 276368), (92, 219292), (146, 138184), (184, 109646), (292, 69092), (368, 54823), (584, 34546), (751, 26864), (1168, 17273), (1502, 13432), (1679, 12016), (3004, 6716), (3358, 6008)]