20288718

素因数分解:

$2^1\times 3^4\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:223

約数の個数: 80

約数和(自身を含む): 49397040

約数和(自身を除く): 29108322

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 53, 54, 81, 102, 106, 139, 153, 159, 162, 278, 306, 318, 417, 459, 477, 834, 901, 918, 954, 1251, 1377, 1431, 1802, 2363, 2502, 2703, 2754, 2862, 3753, 4293, 4726, 5406, 7089, 7367, 7506, 8109, 8586, 11259, 14178, 14734, 16218, 21267, 22101, 22518, 24327, 42534, 44202, 48654, 63801, 66303, 72981, 125239, 127602, 132606, 145962, 191403, 198909, 250478, 375717, 382806, 397818, 596727, 751434, 1127151, 1193454, 2254302, 3381453, 6762906, 10144359, 20288718]

約数ペア:

[(1, 20288718), (2, 10144359), (3, 6762906), (6, 3381453), (9, 2254302), (17, 1193454), (18, 1127151), (27, 751434), (34, 596727), (51, 397818), (53, 382806), (54, 375717), (81, 250478), (102, 198909), (106, 191403), (139, 145962), (153, 132606), (159, 127602), (162, 125239), (278, 72981), (306, 66303), (318, 63801), (417, 48654), (459, 44202), (477, 42534), (834, 24327), (901, 22518), (918, 22101), (954, 21267), (1251, 16218), (1377, 14734), (1431, 14178), (1802, 11259), (2363, 8586), (2502, 8109), (2703, 7506), (2754, 7367), (2862, 7089), (3753, 5406), (4293, 4726)]