20720286

素因数分解:

$2^1\times 3^4\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:187

約数の個数: 80

約数和(自身を含む): 49762944

約数和(自身を除く): 29042658

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 67, 69, 81, 83, 134, 138, 162, 166, 201, 207, 249, 402, 414, 498, 603, 621, 747, 1206, 1242, 1494, 1541, 1809, 1863, 1909, 2241, 3082, 3618, 3726, 3818, 4482, 4623, 5427, 5561, 5727, 6723, 9246, 10854, 11122, 11454, 13446, 13869, 16683, 17181, 27738, 33366, 34362, 41607, 50049, 51543, 83214, 100098, 103086, 124821, 127903, 150147, 154629, 249642, 255806, 300294, 309258, 383709, 450441, 767418, 900882, 1151127, 2302254, 3453381, 6906762, 10360143, 20720286]

約数ペア:

[(1, 20720286), (2, 10360143), (3, 6906762), (6, 3453381), (9, 2302254), (18, 1151127), (23, 900882), (27, 767418), (46, 450441), (54, 383709), (67, 309258), (69, 300294), (81, 255806), (83, 249642), (134, 154629), (138, 150147), (162, 127903), (166, 124821), (201, 103086), (207, 100098), (249, 83214), (402, 51543), (414, 50049), (498, 41607), (603, 34362), (621, 33366), (747, 27738), (1206, 17181), (1242, 16683), (1494, 13869), (1541, 13446), (1809, 11454), (1863, 11122), (1909, 10854), (2241, 9246), (3082, 6723), (3618, 5727), (3726, 5561), (3818, 5427), (4482, 4623)]