81390490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{3373}}^1$

素因数の和:3526

約数の個数: 32

約数和(自身を含む): 155473920

約数和(自身を除く): 74083430

約数列:

[1, 2, 5, 10, 19, 38, 95, 127, 190, 254, 635, 1270, 2413, 3373, 4826, 6746, 12065, 16865, 24130, 33730, 64087, 128174, 320435, 428371, 640870, 856742, 2141855, 4283710, 8139049, 16278098, 40695245, 81390490]

約数ペア:

[(1, 81390490), (2, 40695245), (5, 16278098), (10, 8139049), (19, 4283710), (38, 2141855), (95, 856742), (127, 640870), (190, 428371), (254, 320435), (635, 128174), (1270, 64087), (2413, 33730), (3373, 24130), (4826, 16865), (6746, 12065)]