20805216376

素因数分解:

$2^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{571}}^1\times {\mathrm{6317}}^1$

素因数の和:7004

約数の個数: 64

約数和(自身を含む): 45101422080

約数和(自身を除く): 24296205704

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 103, 206, 412, 571, 721, 824, 1142, 1442, 2284, 2884, 3997, 4568, 5768, 6317, 7994, 12634, 15988, 25268, 31976, 44219, 50536, 58813, 88438, 117626, 176876, 235252, 353752, 411691, 470504, 650651, 823382, 1301302, 1646764, 2602604, 3293528, 3607007, 4554557, 5205208, 7214014, 9109114, 14428028, 18218228, 25249049, 28856056, 36436456, 50498098, 100996196, 201992392, 371521721, 743043442, 1486086884, 2600652047, 2972173768, 5201304094, 10402608188, 20805216376]

約数ペア:

[(1, 20805216376), (2, 10402608188), (4, 5201304094), (7, 2972173768), (8, 2600652047), (14, 1486086884), (28, 743043442), (56, 371521721), (103, 201992392), (206, 100996196), (412, 50498098), (571, 36436456), (721, 28856056), (824, 25249049), (1142, 18218228), (1442, 14428028), (2284, 9109114), (2884, 7214014), (3997, 5205208), (4568, 4554557), (5768, 3607007), (6317, 3293528), (7994, 2602604), (12634, 1646764), (15988, 1301302), (25268, 823382), (31976, 650651), (44219, 470504), (50536, 411691), (58813, 353752), (88438, 235252), (117626, 176876)]