20157254

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:416

約数の個数: 32

約数和(自身を含む): 34110720

約数和(自身を除く): 13953466

約数列:

[1, 2, 13, 26, 31, 62, 89, 178, 281, 403, 562, 806, 1157, 2314, 2759, 3653, 5518, 7306, 8711, 17422, 25009, 35867, 50018, 71734, 113243, 226486, 325117, 650234, 775279, 1550558, 10078627, 20157254]

約数ペア:

[(1, 20157254), (2, 10078627), (13, 1550558), (26, 775279), (31, 650234), (62, 325117), (89, 226486), (178, 113243), (281, 71734), (403, 50018), (562, 35867), (806, 25009), (1157, 17422), (2314, 8711), (2759, 7306), (3653, 5518)]