20131460

素因数分解:

$2^2\times 5^1\times {\mathrm{787}}^1\times {\mathrm{1279}}^1$

素因数の和:2075

約数の個数: 24

約数和(自身を含む): 42362880

約数和(自身を除く): 22231420

約数列:

[1, 2, 4, 5, 10, 20, 787, 1279, 1574, 2558, 3148, 3935, 5116, 6395, 7870, 12790, 15740, 25580, 1006573, 2013146, 4026292, 5032865, 10065730, 20131460]

約数ペア:

[(1, 20131460), (2, 10065730), (4, 5032865), (5, 4026292), (10, 2013146), (20, 1006573), (787, 25580), (1279, 15740), (1574, 12790), (2558, 7870), (3148, 6395), (3935, 5116)]