20198416

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{7841}}^1$

素因数の和:7879

約数の個数: 40

約数和(自身を含む): 46675584

約数和(自身を除く): 26477168

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 92, 112, 161, 184, 322, 368, 644, 1288, 2576, 7841, 15682, 31364, 54887, 62728, 109774, 125456, 180343, 219548, 360686, 439096, 721372, 878192, 1262401, 1442744, 2524802, 2885488, 5049604, 10099208, 20198416]

約数ペア:

[(1, 20198416), (2, 10099208), (4, 5049604), (7, 2885488), (8, 2524802), (14, 1442744), (16, 1262401), (23, 878192), (28, 721372), (46, 439096), (56, 360686), (92, 219548), (112, 180343), (161, 125456), (184, 109774), (322, 62728), (368, 54887), (644, 31364), (1288, 15682), (2576, 7841)]