12797420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20641}}^1$

素因数の和:20681

約数の個数: 24

約数和(自身を含む): 27742848

約数和(自身を除く): 14945428

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 20641, 41282, 82564, 103205, 206410, 412820, 639871, 1279742, 2559484, 3199355, 6398710, 12797420]

約数ペア:

[(1, 12797420), (2, 6398710), (4, 3199355), (5, 2559484), (10, 1279742), (20, 639871), (31, 412820), (62, 206410), (124, 103205), (155, 82564), (310, 41282), (620, 20641)]