1780740140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{557}}^1\times {\mathrm{9403}}^1$

素因数の和:9986

約数の個数: 48

約数和(自身を含む): 3967058592

約数和(自身を除く): 2186318452

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 557, 1114, 2228, 2785, 5570, 9403, 9469, 11140, 18806, 18938, 37612, 37876, 47015, 47345, 94030, 94690, 159851, 188060, 189380, 319702, 639404, 799255, 1598510, 3197020, 5237471, 10474942, 20949884, 26187355, 52374710, 89037007, 104749420, 178074014, 356148028, 445185035, 890370070, 1780740140]

約数ペア:

[(1, 1780740140), (2, 890370070), (4, 445185035), (5, 356148028), (10, 178074014), (17, 104749420), (20, 89037007), (34, 52374710), (68, 26187355), (85, 20949884), (170, 10474942), (340, 5237471), (557, 3197020), (1114, 1598510), (2228, 799255), (2785, 639404), (5570, 319702), (9403, 189380), (9469, 188060), (11140, 159851), (18806, 94690), (18938, 94030), (37612, 47345), (37876, 47015)]