205252820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{540139}}^1$

素因数の和:540167

約数の個数: 24

約数和(自身を含む): 453717600

約数和(自身を除く): 248464780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 540139, 1080278, 2160556, 2700695, 5401390, 10262641, 10802780, 20525282, 41050564, 51313205, 102626410, 205252820]

約数ペア:

[(1, 205252820), (2, 102626410), (4, 51313205), (5, 41050564), (10, 20525282), (19, 10802780), (20, 10262641), (38, 5401390), (76, 2700695), (95, 2160556), (190, 1080278), (380, 540139)]