2011128920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1169261}}^1$

素因数の和:1169315

約数の個数: 32

約数和(自身を含む): 4630277520

約数和(自身を除く): 2619148600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 1169261, 2338522, 4677044, 5846305, 9354088, 11692610, 23385220, 46770440, 50278223, 100556446, 201112892, 251391115, 402225784, 502782230, 1005564460, 2011128920]

約数ペア:

[(1, 2011128920), (2, 1005564460), (4, 502782230), (5, 402225784), (8, 251391115), (10, 201112892), (20, 100556446), (40, 50278223), (43, 46770440), (86, 23385220), (172, 11692610), (215, 9354088), (344, 5846305), (430, 4677044), (860, 2338522), (1720, 1169261)]