209434280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{1187}}^1$

素因数の和:1610

約数の個数: 64

約数和(自身を含む): 515782080

約数和(自身を除く): 306347800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 401, 440, 802, 1187, 1604, 2005, 2374, 3208, 4010, 4411, 4748, 5935, 8020, 8822, 9496, 11870, 13057, 16040, 17644, 22055, 23740, 26114, 35288, 44110, 47480, 52228, 65285, 88220, 104456, 130570, 176440, 261140, 475987, 522280, 951974, 1903948, 2379935, 3807896, 4759870, 5235857, 9519740, 10471714, 19039480, 20943428, 26179285, 41886856, 52358570, 104717140, 209434280]

約数ペア:

[(1, 209434280), (2, 104717140), (4, 52358570), (5, 41886856), (8, 26179285), (10, 20943428), (11, 19039480), (20, 10471714), (22, 9519740), (40, 5235857), (44, 4759870), (55, 3807896), (88, 2379935), (110, 1903948), (220, 951974), (401, 522280), (440, 475987), (802, 261140), (1187, 176440), (1604, 130570), (2005, 104456), (2374, 88220), (3208, 65285), (4010, 52228), (4411, 47480), (4748, 44110), (5935, 35288), (8020, 26114), (8822, 23740), (9496, 22055), (11870, 17644), (13057, 16040)]