831350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1279}}^1$

素因数の和:1304

約数の個数: 24

約数和(自身を含む): 1666560

約数和(自身を除く): 835210

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 1279, 2558, 6395, 12790, 16627, 31975, 33254, 63950, 83135, 166270, 415675, 831350]

約数ペア:

[(1, 831350), (2, 415675), (5, 166270), (10, 83135), (13, 63950), (25, 33254), (26, 31975), (50, 16627), (65, 12790), (130, 6395), (325, 2558), (650, 1279)]