40640444

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{761}}^1$

素因数の和:870

約数の個数: 36

約数和(自身を含む): 78089760

約数和(自身を除く): 37449316

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 169, 316, 338, 676, 761, 1027, 1522, 2054, 3044, 4108, 9893, 13351, 19786, 26702, 39572, 53404, 60119, 120238, 128609, 240476, 257218, 514436, 781547, 1563094, 3126188, 10160111, 20320222, 40640444]

約数ペア:

[(1, 40640444), (2, 20320222), (4, 10160111), (13, 3126188), (26, 1563094), (52, 781547), (79, 514436), (158, 257218), (169, 240476), (316, 128609), (338, 120238), (676, 60119), (761, 53404), (1027, 39572), (1522, 26702), (2054, 19786), (3044, 13351), (4108, 9893)]