28884280

素因数分解:

$2^3\times 5^1\times {\mathrm{347}}^1\times {\mathrm{2081}}^1$

素因数の和:2439

約数の個数: 32

約数和(自身を含む): 65208240

約数和(自身を除く): 36323960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 347, 694, 1388, 1735, 2081, 2776, 3470, 4162, 6940, 8324, 10405, 13880, 16648, 20810, 41620, 83240, 722107, 1444214, 2888428, 3610535, 5776856, 7221070, 14442140, 28884280]

約数ペア:

[(1, 28884280), (2, 14442140), (4, 7221070), (5, 5776856), (8, 3610535), (10, 2888428), (20, 1444214), (40, 722107), (347, 83240), (694, 41620), (1388, 20810), (1735, 16648), (2081, 13880), (2776, 10405), (3470, 8324), (4162, 6940)]