20413850

素因数分解:

$2^1\times 5^2\times {\mathrm{83}}^1\times {\mathrm{4919}}^1$

素因数の和:5014

約数の個数: 24

約数和(自身を含む): 38435040

約数和(自身を除く): 18021190

約数列:

[1, 2, 5, 10, 25, 50, 83, 166, 415, 830, 2075, 4150, 4919, 9838, 24595, 49190, 122975, 245950, 408277, 816554, 2041385, 4082770, 10206925, 20413850]

約数ペア:

[(1, 20413850), (2, 10206925), (5, 4082770), (10, 2041385), (25, 816554), (50, 408277), (83, 245950), (166, 122975), (415, 49190), (830, 24595), (2075, 9838), (4150, 4919)]