20447860

素因数分解:

$2^2\times 5^1\times {\mathrm{373}}^1\times {\mathrm{2741}}^1$

素因数の和:3123

約数の個数: 24

約数和(自身を含む): 43071336

約数和(自身を除く): 22623476

約数列:

[1, 2, 4, 5, 10, 20, 373, 746, 1492, 1865, 2741, 3730, 5482, 7460, 10964, 13705, 27410, 54820, 1022393, 2044786, 4089572, 5111965, 10223930, 20447860]

約数ペア:

[(1, 20447860), (2, 10223930), (4, 5111965), (5, 4089572), (10, 2044786), (20, 1022393), (373, 54820), (746, 27410), (1492, 13705), (1865, 10964), (2741, 7460), (3730, 5482)]