21526120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{241}}^1$

素因数の和:299

約数の個数: 128

約数和(自身を含む): 62726400

約数和(自身を除く): 41200280

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 29, 35, 40, 44, 55, 56, 58, 70, 77, 88, 110, 116, 140, 145, 154, 203, 220, 232, 241, 280, 290, 308, 319, 385, 406, 440, 482, 580, 616, 638, 770, 812, 964, 1015, 1160, 1205, 1276, 1540, 1595, 1624, 1687, 1928, 2030, 2233, 2410, 2552, 2651, 3080, 3190, 3374, 4060, 4466, 4820, 5302, 6380, 6748, 6989, 8120, 8435, 8932, 9640, 10604, 11165, 12760, 13255, 13496, 13978, 16870, 17864, 18557, 21208, 22330, 26510, 27956, 33740, 34945, 37114, 44660, 48923, 53020, 55912, 67480, 69890, 74228, 76879, 89320, 92785, 97846, 106040, 139780, 148456, 153758, 185570, 195692, 244615, 279560, 307516, 371140, 384395, 391384, 489230, 538153, 615032, 742280, 768790, 978460, 1076306, 1537580, 1956920, 2152612, 2690765, 3075160, 4305224, 5381530, 10763060, 21526120]

約数ペア:

[(1, 21526120), (2, 10763060), (4, 5381530), (5, 4305224), (7, 3075160), (8, 2690765), (10, 2152612), (11, 1956920), (14, 1537580), (20, 1076306), (22, 978460), (28, 768790), (29, 742280), (35, 615032), (40, 538153), (44, 489230), (55, 391384), (56, 384395), (58, 371140), (70, 307516), (77, 279560), (88, 244615), (110, 195692), (116, 185570), (140, 153758), (145, 148456), (154, 139780), (203, 106040), (220, 97846), (232, 92785), (241, 89320), (280, 76879), (290, 74228), (308, 69890), (319, 67480), (385, 55912), (406, 53020), (440, 48923), (482, 44660), (580, 37114), (616, 34945), (638, 33740), (770, 27956), (812, 26510), (964, 22330), (1015, 21208), (1160, 18557), (1205, 17864), (1276, 16870), (1540, 13978), (1595, 13496), (1624, 13255), (1687, 12760), (1928, 11165), (2030, 10604), (2233, 9640), (2410, 8932), (2552, 8435), (2651, 8120), (3080, 6989), (3190, 6748), (3374, 6380), (4060, 5302), (4466, 4820)]