28180564

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{257}}^1\times {\mathrm{347}}^1$

素因数の和:687

約数の個数: 24

約数和(自身を含む): 50279040

約数和(自身を除く): 22098476

約数列:

[1, 2, 4, 79, 158, 257, 316, 347, 514, 694, 1028, 1388, 20303, 27413, 40606, 54826, 81212, 89179, 109652, 178358, 356716, 7045141, 14090282, 28180564]

約数ペア:

[(1, 28180564), (2, 14090282), (4, 7045141), (79, 356716), (158, 178358), (257, 109652), (316, 89179), (347, 81212), (514, 54826), (694, 40606), (1028, 27413), (1388, 20303)]