1279307420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1560131}}^1$

素因数の和:1560181

約数の個数: 24

約数和(自身を含む): 2752072848

約数和(自身を除く): 1472765428

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1560131, 3120262, 6240524, 7800655, 15601310, 31202620, 63965371, 127930742, 255861484, 319826855, 639653710, 1279307420]

約数ペア:

[(1, 1279307420), (2, 639653710), (4, 319826855), (5, 255861484), (10, 127930742), (20, 63965371), (41, 31202620), (82, 15601310), (164, 7800655), (205, 6240524), (410, 3120262), (820, 1560131)]