20005656

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^2\times {\mathrm{83}}^2$

素因数の和:197

約数の個数: 72

約数和(自身を含む): 55644540

約数和(自身を除く): 35638884

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 83, 88, 121, 132, 166, 242, 249, 264, 332, 363, 484, 498, 664, 726, 913, 968, 996, 1452, 1826, 1992, 2739, 2904, 3652, 5478, 6889, 7304, 10043, 10956, 13778, 20086, 20667, 21912, 27556, 30129, 40172, 41334, 55112, 60258, 75779, 80344, 82668, 120516, 151558, 165336, 227337, 241032, 303116, 454674, 606232, 833569, 909348, 1667138, 1818696, 2500707, 3334276, 5001414, 6668552, 10002828, 20005656]

約数ペア:

[(1, 20005656), (2, 10002828), (3, 6668552), (4, 5001414), (6, 3334276), (8, 2500707), (11, 1818696), (12, 1667138), (22, 909348), (24, 833569), (33, 606232), (44, 454674), (66, 303116), (83, 241032), (88, 227337), (121, 165336), (132, 151558), (166, 120516), (242, 82668), (249, 80344), (264, 75779), (332, 60258), (363, 55112), (484, 41334), (498, 40172), (664, 30129), (726, 27556), (913, 21912), (968, 20667), (996, 20086), (1452, 13778), (1826, 10956), (1992, 10043), (2739, 7304), (2904, 6889), (3652, 5478)]