205596280

素因数分解:

$2^3\times 5^1\times {\mathrm{5139907}}^1$

素因数の和:5139918

約数の個数: 16

約数和(自身を含む): 462591720

約数和(自身を除く): 256995440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5139907, 10279814, 20559628, 25699535, 41119256, 51399070, 102798140, 205596280]

約数ペア:

[(1, 205596280), (2, 102798140), (4, 51399070), (5, 41119256), (8, 25699535), (10, 20559628), (20, 10279814), (40, 5139907)]