409388638

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{1489}}^1$

素因数の和:1696

約数の個数: 32

約数和(自身を含む): 660844800

約数和(自身を除く): 251456162

約数列:

[1, 2, 23, 43, 46, 86, 139, 278, 989, 1489, 1978, 2978, 3197, 5977, 6394, 11954, 34247, 64027, 68494, 128054, 137471, 206971, 274942, 413942, 1472621, 2945242, 4760333, 8899753, 9520666, 17799506, 204694319, 409388638]

約数ペア:

[(1, 409388638), (2, 204694319), (23, 17799506), (43, 9520666), (46, 8899753), (86, 4760333), (139, 2945242), (278, 1472621), (989, 413942), (1489, 274942), (1978, 206971), (2978, 137471), (3197, 128054), (5977, 68494), (6394, 64027), (11954, 34247)]