215961940

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{22543}}^1$

素因数の和:23031

約数の個数: 24

約数和(自身を含む): 454487040

約数和(自身を除く): 238525100

約数列:

[1, 2, 4, 5, 10, 20, 479, 958, 1916, 2395, 4790, 9580, 22543, 45086, 90172, 112715, 225430, 450860, 10798097, 21596194, 43192388, 53990485, 107980970, 215961940]

約数ペア:

[(1, 215961940), (2, 107980970), (4, 53990485), (5, 43192388), (10, 21596194), (20, 10798097), (479, 450860), (958, 225430), (1916, 112715), (2395, 90172), (4790, 45086), (9580, 22543)]