28436780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{34679}}^1$

素因数の和:34729

約数の個数: 24

約数和(自身を含む): 61175520

約数和(自身を除く): 32738740

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 34679, 69358, 138716, 173395, 346790, 693580, 1421839, 2843678, 5687356, 7109195, 14218390, 28436780]

約数ペア:

[(1, 28436780), (2, 14218390), (4, 7109195), (5, 5687356), (10, 2843678), (20, 1421839), (41, 693580), (82, 346790), (164, 173395), (205, 138716), (410, 69358), (820, 34679)]