20137972

素因数分解:

$2^2\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{307}}^1$

素因数の和:388

約数の個数: 36

約数和(自身を含む): 38152576

約数和(自身を除く): 18014604

約数列:

[1, 2, 4, 23, 31, 46, 62, 92, 124, 307, 529, 614, 713, 1058, 1228, 1426, 2116, 2852, 7061, 9517, 14122, 16399, 19034, 28244, 32798, 38068, 65596, 162403, 218891, 324806, 437782, 649612, 875564, 5034493, 10068986, 20137972]

約数ペア:

[(1, 20137972), (2, 10068986), (4, 5034493), (23, 875564), (31, 649612), (46, 437782), (62, 324806), (92, 218891), (124, 162403), (307, 65596), (529, 38068), (614, 32798), (713, 28244), (1058, 19034), (1228, 16399), (1426, 14122), (2116, 9517), (2852, 7061)]