391441490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{209327}}^1$

素因数の和:209362

約数の個数: 32

約数和(自身を含む): 813867264

約数和(自身を除く): 422425774

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 374, 935, 1870, 209327, 418654, 1046635, 2093270, 2302597, 3558559, 4605194, 7117118, 11512985, 17792795, 23025970, 35585590, 39144149, 78288298, 195720745, 391441490]

約数ペア:

[(1, 391441490), (2, 195720745), (5, 78288298), (10, 39144149), (11, 35585590), (17, 23025970), (22, 17792795), (34, 11512985), (55, 7117118), (85, 4605194), (110, 3558559), (170, 2302597), (187, 2093270), (374, 1046635), (935, 418654), (1870, 209327)]