20001816

素因数分解:

$2^3\times 3^5\times {\mathrm{10289}}^1$

素因数の和:10310

約数の個数: 48

約数和(自身を含む): 56183400

約数和(自身を除く): 36181584

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 243, 324, 486, 648, 972, 1944, 10289, 20578, 30867, 41156, 61734, 82312, 92601, 123468, 185202, 246936, 277803, 370404, 555606, 740808, 833409, 1111212, 1666818, 2222424, 2500227, 3333636, 5000454, 6667272, 10000908, 20001816]

約数ペア:

[(1, 20001816), (2, 10000908), (3, 6667272), (4, 5000454), (6, 3333636), (8, 2500227), (9, 2222424), (12, 1666818), (18, 1111212), (24, 833409), (27, 740808), (36, 555606), (54, 370404), (72, 277803), (81, 246936), (108, 185202), (162, 123468), (216, 92601), (243, 82312), (324, 61734), (486, 41156), (648, 30867), (972, 20578), (1944, 10289)]