201990580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{918139}}^1$

素因数の和:918159

約数の個数: 24

約数和(自身を含む): 462742560

約数和(自身を除く): 260751980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 918139, 1836278, 3672556, 4590695, 9181390, 10099529, 18362780, 20199058, 40398116, 50497645, 100995290, 201990580]

約数ペア:

[(1, 201990580), (2, 100995290), (4, 50497645), (5, 40398116), (10, 20199058), (11, 18362780), (20, 10099529), (22, 9181390), (44, 4590695), (55, 3672556), (110, 1836278), (220, 918139)]