20528281656

素因数分解:

$2^3\times 3^4\times {\mathrm{563}}^1\times {\mathrm{56269}}^1$

素因数の和:56850

約数の個数: 80

約数和(自身を含む): 57601348200

約数和(自身を除く): 37073066544

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 563, 648, 1126, 1689, 2252, 3378, 4504, 5067, 6756, 10134, 13512, 15201, 20268, 30402, 40536, 45603, 56269, 60804, 91206, 112538, 121608, 168807, 182412, 225076, 337614, 364824, 450152, 506421, 675228, 1012842, 1350456, 1519263, 2025684, 3038526, 4051368, 4557789, 6077052, 9115578, 12154104, 18231156, 31679447, 36462312, 63358894, 95038341, 126717788, 190076682, 253435576, 285115023, 380153364, 570230046, 760306728, 855345069, 1140460092, 1710690138, 2280920184, 2566035207, 3421380276, 5132070414, 6842760552, 10264140828, 20528281656]

約数ペア:

[(1, 20528281656), (2, 10264140828), (3, 6842760552), (4, 5132070414), (6, 3421380276), (8, 2566035207), (9, 2280920184), (12, 1710690138), (18, 1140460092), (24, 855345069), (27, 760306728), (36, 570230046), (54, 380153364), (72, 285115023), (81, 253435576), (108, 190076682), (162, 126717788), (216, 95038341), (324, 63358894), (563, 36462312), (648, 31679447), (1126, 18231156), (1689, 12154104), (2252, 9115578), (3378, 6077052), (4504, 4557789), (5067, 4051368), (6756, 3038526), (10134, 2025684), (13512, 1519263), (15201, 1350456), (20268, 1012842), (30402, 675228), (40536, 506421), (45603, 450152), (56269, 364824), (60804, 337614), (91206, 225076), (112538, 182412), (121608, 168807)]