20431072

素因数分解:

$2^5\times {\mathrm{163}}^1\times {\mathrm{3917}}^1$

素因数の和:4090

約数の個数: 24

約数和(自身を含む): 40480776

約数和(自身を除く): 20049704

約数列:

[1, 2, 4, 8, 16, 32, 163, 326, 652, 1304, 2608, 3917, 5216, 7834, 15668, 31336, 62672, 125344, 638471, 1276942, 2553884, 5107768, 10215536, 20431072]

約数ペア:

[(1, 20431072), (2, 10215536), (4, 5107768), (8, 2553884), (16, 1276942), (32, 638471), (163, 125344), (326, 62672), (652, 31336), (1304, 15668), (2608, 7834), (3917, 5216)]