67980784

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{223621}}^1$

素因数の和:223648

約数の個数: 20

約数和(自身を含む): 138645640

約数和(自身を除く): 70664856

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 223621, 447242, 894484, 1788968, 3577936, 4248799, 8497598, 16995196, 33990392, 67980784]

約数ペア:

[(1, 67980784), (2, 33990392), (4, 16995196), (8, 8497598), (16, 4248799), (19, 3577936), (38, 1788968), (76, 894484), (152, 447242), (304, 223621)]