18988210

素因数分解:

$2^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{4229}}^1$

素因数の和:4685

約数の個数: 16

約数和(自身を含む): 34263000

約数和(自身を除く): 15274790

約数列:

[1, 2, 5, 10, 449, 898, 2245, 4229, 4490, 8458, 21145, 42290, 1898821, 3797642, 9494105, 18988210]

約数ペア:

[(1, 18988210), (2, 9494105), (5, 3797642), (10, 1898821), (449, 42290), (898, 21145), (2245, 8458), (4229, 4490)]