201920210

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{199921}}^1$

素因数の和:200029

約数の個数: 16

約数和(自身を含む): 367056792

約数和(自身を除く): 165136582

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 199921, 399842, 999605, 1999210, 20192021, 40384042, 100960105, 201920210]

約数ペア:

[(1, 201920210), (2, 100960105), (5, 40384042), (10, 20192021), (101, 1999210), (202, 999605), (505, 399842), (1010, 199921)]