128439199

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{281}}^1$

素因数の和:495

約数の個数: 32

約数和(自身を含む): 163731456

約数和(自身を除く): 35292257

約数列:

[1, 7, 17, 23, 119, 161, 167, 281, 391, 1169, 1967, 2737, 2839, 3841, 4777, 6463, 19873, 26887, 33439, 45241, 46927, 65297, 109871, 328489, 457079, 769097, 797759, 1079321, 5584313, 7555247, 18348457, 128439199]

約数ペア:

[(1, 128439199), (7, 18348457), (17, 7555247), (23, 5584313), (119, 1079321), (161, 797759), (167, 769097), (281, 457079), (391, 328489), (1169, 109871), (1967, 65297), (2737, 46927), (2839, 45241), (3841, 33439), (4777, 26887), (6463, 19873)]