20098980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10151}}^1$

素因数の和:10177

約数の個数: 72

約数和(自身を含む): 66515904

約数和(自身を除く): 46416924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 10151, 20302, 30453, 40604, 50755, 60906, 91359, 101510, 111661, 121812, 152265, 182718, 203020, 223322, 304530, 334983, 365436, 446644, 456795, 558305, 609060, 669966, 913590, 1004949, 1116610, 1339932, 1674915, 1827180, 2009898, 2233220, 3349830, 4019796, 5024745, 6699660, 10049490, 20098980]

約数ペア:

[(1, 20098980), (2, 10049490), (3, 6699660), (4, 5024745), (5, 4019796), (6, 3349830), (9, 2233220), (10, 2009898), (11, 1827180), (12, 1674915), (15, 1339932), (18, 1116610), (20, 1004949), (22, 913590), (30, 669966), (33, 609060), (36, 558305), (44, 456795), (45, 446644), (55, 365436), (60, 334983), (66, 304530), (90, 223322), (99, 203020), (110, 182718), (132, 152265), (165, 121812), (180, 111661), (198, 101510), (220, 91359), (330, 60906), (396, 50755), (495, 40604), (660, 30453), (990, 20302), (1980, 10151)]