20040878

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{887}}^1$

素因数の和:992

約数の個数: 32

約数和(自身を含む): 35804160

約数和(自身を除く): 15763282

約数列:

[1, 2, 11, 13, 22, 26, 79, 143, 158, 286, 869, 887, 1027, 1738, 1774, 2054, 9757, 11297, 11531, 19514, 22594, 23062, 70073, 126841, 140146, 253682, 770803, 910949, 1541606, 1821898, 10020439, 20040878]

約数ペア:

[(1, 20040878), (2, 10020439), (11, 1821898), (13, 1541606), (22, 910949), (26, 770803), (79, 253682), (143, 140146), (158, 126841), (286, 70073), (869, 23062), (887, 22594), (1027, 19514), (1738, 11531), (1774, 11297), (2054, 9757)]