19725170

素因数分解:

$2^1\times 5^1\times {\mathrm{277}}^1\times {\mathrm{7121}}^1$

素因数の和:7405

約数の個数: 16

約数和(自身を含む): 35638488

約数和(自身を除く): 15913318

約数列:

[1, 2, 5, 10, 277, 554, 1385, 2770, 7121, 14242, 35605, 71210, 1972517, 3945034, 9862585, 19725170]

約数ペア:

[(1, 19725170), (2, 9862585), (5, 3945034), (10, 1972517), (277, 71210), (554, 35605), (1385, 14242), (2770, 7121)]