398452

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:159

約数の個数: 24

約数和(自身を含む): 749952

約数和(自身を除く): 351500

約数列:

[1, 2, 4, 23, 46, 61, 71, 92, 122, 142, 244, 284, 1403, 1633, 2806, 3266, 4331, 5612, 6532, 8662, 17324, 99613, 199226, 398452]

約数ペア:

[(1, 398452), (2, 199226), (4, 99613), (23, 17324), (46, 8662), (61, 6532), (71, 5612), (92, 4331), (122, 3266), (142, 2806), (244, 1633), (284, 1403)]