20530928

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:174

約数の個数: 80

約数和(自身を含む): 46282752

約数和(自身を除く): 25751824

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 53, 62, 71, 88, 106, 124, 142, 176, 212, 248, 284, 341, 424, 496, 568, 583, 682, 781, 848, 1136, 1166, 1364, 1562, 1643, 2201, 2332, 2728, 3124, 3286, 3763, 4402, 4664, 5456, 6248, 6572, 7526, 8804, 9328, 12496, 13144, 15052, 17608, 18073, 24211, 26288, 30104, 35216, 36146, 41393, 48422, 60208, 72292, 82786, 96844, 116653, 144584, 165572, 193688, 233306, 289168, 331144, 387376, 466612, 662288, 933224, 1283183, 1866448, 2566366, 5132732, 10265464, 20530928]

約数ペア:

[(1, 20530928), (2, 10265464), (4, 5132732), (8, 2566366), (11, 1866448), (16, 1283183), (22, 933224), (31, 662288), (44, 466612), (53, 387376), (62, 331144), (71, 289168), (88, 233306), (106, 193688), (124, 165572), (142, 144584), (176, 116653), (212, 96844), (248, 82786), (284, 72292), (341, 60208), (424, 48422), (496, 41393), (568, 36146), (583, 35216), (682, 30104), (781, 26288), (848, 24211), (1136, 18073), (1166, 17608), (1364, 15052), (1562, 13144), (1643, 12496), (2201, 9328), (2332, 8804), (2728, 7526), (3124, 6572), (3286, 6248), (3763, 5456), (4402, 4664)]