397966508

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{997}}^1\times {\mathrm{1367}}^1$

素因数の和:2441

約数の個数: 24

約数和(自身を含む): 707206752

約数和(自身を除く): 309240244

約数列:

[1, 2, 4, 73, 146, 292, 997, 1367, 1994, 2734, 3988, 5468, 72781, 99791, 145562, 199582, 291124, 399164, 1362899, 2725798, 5451596, 99491627, 198983254, 397966508]

約数ペア:

[(1, 397966508), (2, 198983254), (4, 99491627), (73, 5451596), (146, 2725798), (292, 1362899), (997, 399164), (1367, 291124), (1994, 199582), (2734, 145562), (3988, 99791), (5468, 72781)]