28778220

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{389}}^1$

素因数の和:544

約数の個数: 96

約数和(自身を含む): 90417600

約数和(自身を除く): 61639380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 137, 180, 270, 274, 389, 411, 540, 548, 685, 778, 822, 1167, 1233, 1370, 1556, 1644, 1945, 2055, 2334, 2466, 2740, 3501, 3699, 3890, 4110, 4668, 4932, 5835, 6165, 7002, 7398, 7780, 8220, 10503, 11670, 12330, 14004, 14796, 17505, 18495, 21006, 23340, 24660, 35010, 36990, 42012, 52515, 53293, 70020, 73980, 105030, 106586, 159879, 210060, 213172, 266465, 319758, 479637, 532930, 639516, 799395, 959274, 1065860, 1438911, 1598790, 1918548, 2398185, 2877822, 3197580, 4796370, 5755644, 7194555, 9592740, 14389110, 28778220]

約数ペア:

[(1, 28778220), (2, 14389110), (3, 9592740), (4, 7194555), (5, 5755644), (6, 4796370), (9, 3197580), (10, 2877822), (12, 2398185), (15, 1918548), (18, 1598790), (20, 1438911), (27, 1065860), (30, 959274), (36, 799395), (45, 639516), (54, 532930), (60, 479637), (90, 319758), (108, 266465), (135, 213172), (137, 210060), (180, 159879), (270, 106586), (274, 105030), (389, 73980), (411, 70020), (540, 53293), (548, 52515), (685, 42012), (778, 36990), (822, 35010), (1167, 24660), (1233, 23340), (1370, 21006), (1556, 18495), (1644, 17505), (1945, 14796), (2055, 14004), (2334, 12330), (2466, 11670), (2740, 10503), (3501, 8220), (3699, 7780), (3890, 7398), (4110, 7002), (4668, 6165), (4932, 5835)]