2089660

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{641}}^1$

素因数の和:813

約数の個数: 24

約数和(自身を含む): 4422096

約数和(自身を除く): 2332436

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 641, 652, 815, 1282, 1630, 2564, 3205, 3260, 6410, 12820, 104483, 208966, 417932, 522415, 1044830, 2089660]

約数ペア:

[(1, 2089660), (2, 1044830), (4, 522415), (5, 417932), (10, 208966), (20, 104483), (163, 12820), (326, 6410), (641, 3260), (652, 3205), (815, 2564), (1282, 1630)]