19974416

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{523}}^1$

素因数の和:580

約数の個数: 80

約数和(自身を含む): 49901568

約数和(自身を除く): 29927152

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 31, 44, 56, 62, 77, 88, 112, 124, 154, 176, 217, 248, 308, 341, 434, 496, 523, 616, 682, 868, 1046, 1232, 1364, 1736, 2092, 2387, 2728, 3472, 3661, 4184, 4774, 5456, 5753, 7322, 8368, 9548, 11506, 14644, 16213, 19096, 23012, 29288, 32426, 38192, 40271, 46024, 58576, 64852, 80542, 92048, 113491, 129704, 161084, 178343, 226982, 259408, 322168, 356686, 453964, 644336, 713372, 907928, 1248401, 1426744, 1815856, 2496802, 2853488, 4993604, 9987208, 19974416]

約数ペア:

[(1, 19974416), (2, 9987208), (4, 4993604), (7, 2853488), (8, 2496802), (11, 1815856), (14, 1426744), (16, 1248401), (22, 907928), (28, 713372), (31, 644336), (44, 453964), (56, 356686), (62, 322168), (77, 259408), (88, 226982), (112, 178343), (124, 161084), (154, 129704), (176, 113491), (217, 92048), (248, 80542), (308, 64852), (341, 58576), (434, 46024), (496, 40271), (523, 38192), (616, 32426), (682, 29288), (868, 23012), (1046, 19096), (1232, 16213), (1364, 14644), (1736, 11506), (2092, 9548), (2387, 8368), (2728, 7322), (3472, 5753), (3661, 5456), (4184, 4774)]