79840040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{911}}^1$

素因数の和:1242

約数の個数: 64

約数和(自身を含む): 206184960

約数和(自身を除く): 126344920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 313, 626, 911, 1252, 1565, 1822, 2191, 2504, 3130, 3644, 4382, 4555, 6260, 6377, 7288, 8764, 9110, 10955, 12520, 12754, 17528, 18220, 21910, 25508, 31885, 36440, 43820, 51016, 63770, 87640, 127540, 255080, 285143, 570286, 1140572, 1425715, 1996001, 2281144, 2851430, 3992002, 5702860, 7984004, 9980005, 11405720, 15968008, 19960010, 39920020, 79840040]

約数ペア:

[(1, 79840040), (2, 39920020), (4, 19960010), (5, 15968008), (7, 11405720), (8, 9980005), (10, 7984004), (14, 5702860), (20, 3992002), (28, 2851430), (35, 2281144), (40, 1996001), (56, 1425715), (70, 1140572), (140, 570286), (280, 285143), (313, 255080), (626, 127540), (911, 87640), (1252, 63770), (1565, 51016), (1822, 43820), (2191, 36440), (2504, 31885), (3130, 25508), (3644, 21910), (4382, 18220), (4555, 17528), (6260, 12754), (6377, 12520), (7288, 10955), (8764, 9110)]