20658470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{701}}^1$

素因数の和:1136

約数の個数: 32

約数和(自身を含む): 42659136

約数和(自身を除く): 22000666

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 421, 701, 842, 1402, 2105, 2947, 3505, 4210, 4907, 5894, 7010, 9814, 14735, 24535, 29470, 49070, 295121, 590242, 1475605, 2065847, 2951210, 4131694, 10329235, 20658470]

約数ペア:

[(1, 20658470), (2, 10329235), (5, 4131694), (7, 2951210), (10, 2065847), (14, 1475605), (35, 590242), (70, 295121), (421, 49070), (701, 29470), (842, 24535), (1402, 14735), (2105, 9814), (2947, 7010), (3505, 5894), (4210, 4907)]