6400660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{349}}^1$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 15523200

約数和(自身を除く): 9122540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 131, 140, 262, 349, 524, 655, 698, 917, 1310, 1396, 1745, 1834, 2443, 2620, 3490, 3668, 4585, 4886, 6980, 9170, 9772, 12215, 18340, 24430, 45719, 48860, 91438, 182876, 228595, 320033, 457190, 640066, 914380, 1280132, 1600165, 3200330, 6400660]

約数ペア:

[(1, 6400660), (2, 3200330), (4, 1600165), (5, 1280132), (7, 914380), (10, 640066), (14, 457190), (20, 320033), (28, 228595), (35, 182876), (70, 91438), (131, 48860), (140, 45719), (262, 24430), (349, 18340), (524, 12215), (655, 9772), (698, 9170), (917, 6980), (1310, 4886), (1396, 4585), (1745, 3668), (1834, 3490), (2443, 2620)]