2002780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7703}}^1$

素因数の和:7725

約数の個数: 24

約数和(自身を含む): 4529952

約数和(自身を除く): 2527172

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 7703, 15406, 30812, 38515, 77030, 100139, 154060, 200278, 400556, 500695, 1001390, 2002780]

約数ペア:

[(1, 2002780), (2, 1001390), (4, 500695), (5, 400556), (10, 200278), (13, 154060), (20, 100139), (26, 77030), (52, 38515), (65, 30812), (130, 15406), (260, 7703)]