285416780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1297349}}^1$

素因数の和:1297369

約数の個数: 24

約数和(自身を含む): 653864400

約数和(自身を除く): 368447620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1297349, 2594698, 5189396, 6486745, 12973490, 14270839, 25946980, 28541678, 57083356, 71354195, 142708390, 285416780]

約数ペア:

[(1, 285416780), (2, 142708390), (4, 71354195), (5, 57083356), (10, 28541678), (11, 25946980), (20, 14270839), (22, 12973490), (44, 6486745), (55, 5189396), (110, 2594698), (220, 1297349)]