89555580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1279}}^1$

素因数の和:1683

約数の個数: 72

約数和(自身を含む): 272563200

約数和(自身を除く): 183007620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 389, 778, 1167, 1279, 1556, 1945, 2334, 2558, 3501, 3837, 3890, 4668, 5116, 5835, 6395, 7002, 7674, 7780, 11511, 11670, 12790, 14004, 15348, 17505, 19185, 23022, 23340, 25580, 35010, 38370, 46044, 57555, 70020, 76740, 115110, 230220, 497531, 995062, 1492593, 1990124, 2487655, 2985186, 4477779, 4975310, 5970372, 7462965, 8955558, 9950620, 14925930, 17911116, 22388895, 29851860, 44777790, 89555580]

約数ペア:

[(1, 89555580), (2, 44777790), (3, 29851860), (4, 22388895), (5, 17911116), (6, 14925930), (9, 9950620), (10, 8955558), (12, 7462965), (15, 5970372), (18, 4975310), (20, 4477779), (30, 2985186), (36, 2487655), (45, 1990124), (60, 1492593), (90, 995062), (180, 497531), (389, 230220), (778, 115110), (1167, 76740), (1279, 70020), (1556, 57555), (1945, 46044), (2334, 38370), (2558, 35010), (3501, 25580), (3837, 23340), (3890, 23022), (4668, 19185), (5116, 17505), (5835, 15348), (6395, 14004), (7002, 12790), (7674, 11670), (7780, 11511)]