20800112

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{76471}}^1$

素因数の和:76496

約数の個数: 20

約数和(自身を含む): 42671376

約数和(自身を除く): 21871264

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 76471, 152942, 305884, 611768, 1223536, 1300007, 2600014, 5200028, 10400056, 20800112]

約数ペア:

[(1, 20800112), (2, 10400056), (4, 5200028), (8, 2600014), (16, 1300007), (17, 1223536), (34, 611768), (68, 305884), (136, 152942), (272, 76471)]