200420140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{589471}}^1$

素因数の和:589497

約数の個数: 24

約数和(自身を含む): 445640832

約数和(自身を除く): 245220692

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 589471, 1178942, 2357884, 2947355, 5894710, 10021007, 11789420, 20042014, 40084028, 50105035, 100210070, 200420140]

約数ペア:

[(1, 200420140), (2, 100210070), (4, 50105035), (5, 40084028), (10, 20042014), (17, 11789420), (20, 10021007), (34, 5894710), (68, 2947355), (85, 2357884), (170, 1178942), (340, 589471)]