201919420

素因数分解:

$2^2\times 5^1\times {\mathrm{617}}^1\times {\mathrm{16363}}^1$

素因数の和:16989

約数の個数: 24

約数和(自身を含む): 424743984

約数和(自身を除く): 222824564

約数列:

[1, 2, 4, 5, 10, 20, 617, 1234, 2468, 3085, 6170, 12340, 16363, 32726, 65452, 81815, 163630, 327260, 10095971, 20191942, 40383884, 50479855, 100959710, 201919420]

約数ペア:

[(1, 201919420), (2, 100959710), (4, 50479855), (5, 40383884), (10, 20191942), (20, 10095971), (617, 327260), (1234, 163630), (2468, 81815), (3085, 65452), (6170, 32726), (12340, 16363)]