205320680

素因数分解:

$2^3\times 5^1\times {\mathrm{5133017}}^1$

素因数の和:5133028

約数の個数: 16

約数和(自身を含む): 461971620

約数和(自身を除く): 256650940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5133017, 10266034, 20532068, 25665085, 41064136, 51330170, 102660340, 205320680]

約数ペア:

[(1, 205320680), (2, 102660340), (4, 51330170), (5, 41064136), (8, 25665085), (10, 20532068), (20, 10266034), (40, 5133017)]