154877980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{3761}}^1$

素因数の和:3870

約数の個数: 48

約数和(自身を含む): 341288640

約数和(自身を除く): 186410660

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 71, 116, 142, 145, 284, 290, 355, 580, 710, 1420, 2059, 3761, 4118, 7522, 8236, 10295, 15044, 18805, 20590, 37610, 41180, 75220, 109069, 218138, 267031, 436276, 534062, 545345, 1068124, 1090690, 1335155, 2181380, 2670310, 5340620, 7743899, 15487798, 30975596, 38719495, 77438990, 154877980]

約数ペア:

[(1, 154877980), (2, 77438990), (4, 38719495), (5, 30975596), (10, 15487798), (20, 7743899), (29, 5340620), (58, 2670310), (71, 2181380), (116, 1335155), (142, 1090690), (145, 1068124), (284, 545345), (290, 534062), (355, 436276), (580, 267031), (710, 218138), (1420, 109069), (2059, 75220), (3761, 41180), (4118, 37610), (7522, 20590), (8236, 18805), (10295, 15044)]