1721410640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1132507}}^1$

素因数の和:1132539

約数の個数: 40

約数和(自身を含む): 4212929760

約数和(自身を除く): 2491519120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 1132507, 2265014, 4530028, 5662535, 9060056, 11325070, 18120112, 21517633, 22650140, 43035266, 45300280, 86070532, 90600560, 107588165, 172141064, 215176330, 344282128, 430352660, 860705320, 1721410640]

約数ペア:

[(1, 1721410640), (2, 860705320), (4, 430352660), (5, 344282128), (8, 215176330), (10, 172141064), (16, 107588165), (19, 90600560), (20, 86070532), (38, 45300280), (40, 43035266), (76, 22650140), (80, 21517633), (95, 18120112), (152, 11325070), (190, 9060056), (304, 5662535), (380, 4530028), (760, 2265014), (1520, 1132507)]