20479356

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{307}}^1$

素因数の和:443

約数の個数: 72

約数和(自身を含む): 55495440

約数和(自身を除く): 35016084

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 109, 153, 204, 218, 306, 307, 327, 436, 612, 614, 654, 921, 981, 1228, 1308, 1842, 1853, 1962, 2763, 3684, 3706, 3924, 5219, 5526, 5559, 7412, 10438, 11052, 11118, 15657, 16677, 20876, 22236, 31314, 33354, 33463, 46971, 62628, 66708, 66926, 93942, 100389, 133852, 187884, 200778, 301167, 401556, 568871, 602334, 1137742, 1204668, 1706613, 2275484, 3413226, 5119839, 6826452, 10239678, 20479356]

約数ペア:

[(1, 20479356), (2, 10239678), (3, 6826452), (4, 5119839), (6, 3413226), (9, 2275484), (12, 1706613), (17, 1204668), (18, 1137742), (34, 602334), (36, 568871), (51, 401556), (68, 301167), (102, 200778), (109, 187884), (153, 133852), (204, 100389), (218, 93942), (306, 66926), (307, 66708), (327, 62628), (436, 46971), (612, 33463), (614, 33354), (654, 31314), (921, 22236), (981, 20876), (1228, 16677), (1308, 15657), (1842, 11118), (1853, 11052), (1962, 10438), (2763, 7412), (3684, 5559), (3706, 5526), (3924, 5219)]