19958144

素因数分解:

$2^7\times {\mathrm{41}}^1\times {\mathrm{3803}}^1$

素因数の和:3858

約数の個数: 32

約数和(自身を含む): 40740840

約数和(自身を除く): 20782696

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 82, 128, 164, 328, 656, 1312, 2624, 3803, 5248, 7606, 15212, 30424, 60848, 121696, 155923, 243392, 311846, 486784, 623692, 1247384, 2494768, 4989536, 9979072, 19958144]

約数ペア:

[(1, 19958144), (2, 9979072), (4, 4989536), (8, 2494768), (16, 1247384), (32, 623692), (41, 486784), (64, 311846), (82, 243392), (128, 155923), (164, 121696), (328, 60848), (656, 30424), (1312, 15212), (2624, 7606), (3803, 5248)]