215845720

素因数分解:

$2^3\times 5^1\times {\mathrm{1097}}^1\times {\mathrm{4919}}^1$

素因数の和:6027

約数の個数: 32

約数和(自身を含む): 486194400

約数和(自身を除く): 270348680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1097, 2194, 4388, 4919, 5485, 8776, 9838, 10970, 19676, 21940, 24595, 39352, 43880, 49190, 98380, 196760, 5396143, 10792286, 21584572, 26980715, 43169144, 53961430, 107922860, 215845720]

約数ペア:

[(1, 215845720), (2, 107922860), (4, 53961430), (5, 43169144), (8, 26980715), (10, 21584572), (20, 10792286), (40, 5396143), (1097, 196760), (2194, 98380), (4388, 49190), (4919, 43880), (5485, 39352), (8776, 24595), (9838, 21940), (10970, 19676)]