20161821310

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1171}}^1\times {\mathrm{90619}}^1$

素因数の和:91816

約数の個数: 32

約数和(自身を含む): 38234390400

約数和(自身を除く): 18072569090

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 1171, 2342, 5855, 11710, 22249, 44498, 90619, 111245, 181238, 222490, 453095, 906190, 1721761, 3443522, 8608805, 17217610, 106114849, 212229698, 530574245, 1061148490, 2016182131, 4032364262, 10080910655, 20161821310]

約数ペア:

[(1, 20161821310), (2, 10080910655), (5, 4032364262), (10, 2016182131), (19, 1061148490), (38, 530574245), (95, 212229698), (190, 106114849), (1171, 17217610), (2342, 8608805), (5855, 3443522), (11710, 1721761), (22249, 906190), (44498, 453095), (90619, 222490), (111245, 181238)]