20502245

素因数分解:

$5^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1\times {\mathrm{389}}^1$

素因数の和:604

約数の個数: 16

約数和(自身を含む): 25159680

約数和(自身を除く): 4657435

約数列:

[1, 5, 83, 127, 389, 415, 635, 1945, 10541, 32287, 49403, 52705, 161435, 247015, 4100449, 20502245]

約数ペア:

[(1, 20502245), (5, 4100449), (83, 247015), (127, 161435), (389, 52705), (415, 49403), (635, 32287), (1945, 10541)]