20712280

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{27253}}^1$

素因数の和:27283

約数の個数: 32

約数和(自身を含む): 49057200

約数和(自身を除く): 28344920

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 27253, 54506, 109012, 136265, 218024, 272530, 517807, 545060, 1035614, 1090120, 2071228, 2589035, 4142456, 5178070, 10356140, 20712280]

約数ペア:

[(1, 20712280), (2, 10356140), (4, 5178070), (5, 4142456), (8, 2589035), (10, 2071228), (19, 1090120), (20, 1035614), (38, 545060), (40, 517807), (76, 272530), (95, 218024), (152, 136265), (190, 109012), (380, 54506), (760, 27253)]