28277820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1237}}^1$

素因数の和:1379

約数の個数: 72

約数和(自身を含む): 86521344

約数和(自身を除く): 58243524

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 127, 180, 254, 381, 508, 635, 762, 1143, 1237, 1270, 1524, 1905, 2286, 2474, 2540, 3711, 3810, 4572, 4948, 5715, 6185, 7422, 7620, 11133, 11430, 12370, 14844, 18555, 22266, 22860, 24740, 37110, 44532, 55665, 74220, 111330, 157099, 222660, 314198, 471297, 628396, 785495, 942594, 1413891, 1570990, 1885188, 2356485, 2827782, 3141980, 4712970, 5655564, 7069455, 9425940, 14138910, 28277820]

約数ペア:

[(1, 28277820), (2, 14138910), (3, 9425940), (4, 7069455), (5, 5655564), (6, 4712970), (9, 3141980), (10, 2827782), (12, 2356485), (15, 1885188), (18, 1570990), (20, 1413891), (30, 942594), (36, 785495), (45, 628396), (60, 471297), (90, 314198), (127, 222660), (180, 157099), (254, 111330), (381, 74220), (508, 55665), (635, 44532), (762, 37110), (1143, 24740), (1237, 22860), (1270, 22266), (1524, 18555), (1905, 14844), (2286, 12370), (2474, 11430), (2540, 11133), (3711, 7620), (3810, 7422), (4572, 6185), (4948, 5715)]