18922780

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{2711}}^1$

素因数の和:3069

約数の個数: 24

約数和(自身を含む): 39866400

約数和(自身を除く): 20943620

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1396, 1745, 2711, 3490, 5422, 6980, 10844, 13555, 27110, 54220, 946139, 1892278, 3784556, 4730695, 9461390, 18922780]

約数ペア:

[(1, 18922780), (2, 9461390), (4, 4730695), (5, 3784556), (10, 1892278), (20, 946139), (349, 54220), (698, 27110), (1396, 13555), (1745, 10844), (2711, 6980), (3490, 5422)]