389085560

素因数分解:

$2^3\times 5^1\times {\mathrm{9727139}}^1$

素因数の和:9727150

約数の個数: 16

約数和(自身を含む): 875442600

約数和(自身を除く): 486357040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9727139, 19454278, 38908556, 48635695, 77817112, 97271390, 194542780, 389085560]

約数ペア:

[(1, 389085560), (2, 194542780), (4, 97271390), (5, 77817112), (8, 48635695), (10, 38908556), (20, 19454278), (40, 9727139)]