205121858020

素因数分解:

$2^2\times 5^1\times {\mathrm{138883}}^1\times {\mathrm{73847}}^1$

素因数の和:212739

約数の個数: 24

約数和(自身を含む): 430764836544

約数和(自身を除く): 225642978524

約数列:

[1, 2, 4, 5, 10, 20, 73847, 138883, 147694, 277766, 295388, 369235, 555532, 694415, 738470, 1388830, 1476940, 2777660, 10256092901, 20512185802, 41024371604, 51280464505, 102560929010, 205121858020]

約数ペア:

[(1, 205121858020), (2, 102560929010), (4, 51280464505), (5, 41024371604), (10, 20512185802), (20, 10256092901), (73847, 2777660), (138883, 1476940), (147694, 1388830), (277766, 738470), (295388, 694415), (369235, 555532)]