209210980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{950959}}^1$

素因数の和:950979

約数の個数: 24

約数和(自身を含む): 479283840

約数和(自身を除く): 270072860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 950959, 1901918, 3803836, 4754795, 9509590, 10460549, 19019180, 20921098, 41842196, 52302745, 104605490, 209210980]

約数ペア:

[(1, 209210980), (2, 104605490), (4, 52302745), (5, 41842196), (10, 20921098), (11, 19019180), (20, 10460549), (22, 9509590), (44, 4754795), (55, 3803836), (110, 1901918), (220, 950959)]