15355880

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{5407}}^1$

素因数の和:5489

約数の個数: 32

約数和(自身を含む): 35043840

約数和(自身を除く): 19687960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 5407, 10814, 21628, 27035, 43256, 54070, 108140, 216280, 383897, 767794, 1535588, 1919485, 3071176, 3838970, 7677940, 15355880]

約数ペア:

[(1, 15355880), (2, 7677940), (4, 3838970), (5, 3071176), (8, 1919485), (10, 1535588), (20, 767794), (40, 383897), (71, 216280), (142, 108140), (284, 54070), (355, 43256), (568, 27035), (710, 21628), (1420, 10814), (2840, 5407)]