20793980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{54721}}^1$

素因数の和:54749

約数の個数: 24

約数和(自身を含む): 45966480

約数和(自身を除く): 25172500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 54721, 109442, 218884, 273605, 547210, 1039699, 1094420, 2079398, 4158796, 5198495, 10396990, 20793980]

約数ペア:

[(1, 20793980), (2, 10396990), (4, 5198495), (5, 4158796), (10, 2079398), (19, 1094420), (20, 1039699), (38, 547210), (76, 273605), (95, 218884), (190, 109442), (380, 54721)]