720860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 1827840

約数和(自身を除く): 1106980

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 271, 380, 532, 542, 665, 1084, 1330, 1355, 1897, 2660, 2710, 3794, 5149, 5420, 7588, 9485, 10298, 18970, 20596, 25745, 36043, 37940, 51490, 72086, 102980, 144172, 180215, 360430, 720860]

約数ペア:

[(1, 720860), (2, 360430), (4, 180215), (5, 144172), (7, 102980), (10, 72086), (14, 51490), (19, 37940), (20, 36043), (28, 25745), (35, 20596), (38, 18970), (70, 10298), (76, 9485), (95, 7588), (133, 5420), (140, 5149), (190, 3794), (266, 2710), (271, 2660), (380, 1897), (532, 1355), (542, 1330), (665, 1084)]