1089580

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{347}}^1$

素因数の和:513

約数の個数: 24

約数和(自身を含む): 2309328

約数和(自身を除く): 1219748

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 347, 628, 694, 785, 1388, 1570, 1735, 3140, 3470, 6940, 54479, 108958, 217916, 272395, 544790, 1089580]

約数ペア:

[(1, 1089580), (2, 544790), (4, 272395), (5, 217916), (10, 108958), (20, 54479), (157, 6940), (314, 3470), (347, 3140), (628, 1735), (694, 1570), (785, 1388)]