66811180

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{13309}}^1$

素因数の和:13569

約数の個数: 24

約数和(自身を含む): 140873040

約数和(自身を除く): 74061860

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 13309, 26618, 53236, 66545, 133090, 266180, 3340559, 6681118, 13362236, 16702795, 33405590, 66811180]

約数ペア:

[(1, 66811180), (2, 33405590), (4, 16702795), (5, 13362236), (10, 6681118), (20, 3340559), (251, 266180), (502, 133090), (1004, 66545), (1255, 53236), (2510, 26618), (5020, 13309)]