20425872

素因数分解:

$2^4\times 3^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:256

約数の個数: 80

約数和(自身を含む): 55121472

約数和(自身を除く): 34695600

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 41, 48, 82, 97, 107, 123, 164, 194, 214, 246, 291, 321, 328, 388, 428, 492, 582, 642, 656, 776, 856, 984, 1164, 1284, 1552, 1712, 1968, 2328, 2568, 3977, 4387, 4656, 5136, 7954, 8774, 10379, 11931, 13161, 15908, 17548, 20758, 23862, 26322, 31137, 31816, 35096, 41516, 47724, 52644, 62274, 63632, 70192, 83032, 95448, 105288, 124548, 166064, 190896, 210576, 249096, 425539, 498192, 851078, 1276617, 1702156, 2553234, 3404312, 5106468, 6808624, 10212936, 20425872]

約数ペア:

[(1, 20425872), (2, 10212936), (3, 6808624), (4, 5106468), (6, 3404312), (8, 2553234), (12, 1702156), (16, 1276617), (24, 851078), (41, 498192), (48, 425539), (82, 249096), (97, 210576), (107, 190896), (123, 166064), (164, 124548), (194, 105288), (214, 95448), (246, 83032), (291, 70192), (321, 63632), (328, 62274), (388, 52644), (428, 47724), (492, 41516), (582, 35096), (642, 31816), (656, 31137), (776, 26322), (856, 23862), (984, 20758), (1164, 17548), (1284, 15908), (1552, 13161), (1712, 11931), (1968, 10379), (2328, 8774), (2568, 7954), (3977, 5136), (4387, 4656)]