66996920

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{6673}}^1$

素因数の和:6935

約数の個数: 32

約数和(自身を含む): 151366320

約数和(自身を除く): 84369400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 6673, 10040, 13346, 26692, 33365, 53384, 66730, 133460, 266920, 1674923, 3349846, 6699692, 8374615, 13399384, 16749230, 33498460, 66996920]

約数ペア:

[(1, 66996920), (2, 33498460), (4, 16749230), (5, 13399384), (8, 8374615), (10, 6699692), (20, 3349846), (40, 1674923), (251, 266920), (502, 133460), (1004, 66730), (1255, 53384), (2008, 33365), (2510, 26692), (5020, 13346), (6673, 10040)]