28247778

素因数分解:

$2^1\times 3^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1$

素因数の和:310

約数の個数: 96

約数和(自身を含む): 72648576

約数和(自身を除く): 44400798

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 27, 34, 39, 51, 54, 78, 81, 102, 117, 153, 162, 221, 234, 243, 263, 306, 351, 442, 459, 486, 526, 663, 702, 789, 918, 1053, 1326, 1377, 1578, 1989, 2106, 2367, 2754, 3159, 3419, 3978, 4131, 4471, 4734, 5967, 6318, 6838, 7101, 8262, 8942, 10257, 11934, 13413, 14202, 17901, 20514, 21303, 26826, 30771, 35802, 40239, 42606, 53703, 58123, 61542, 63909, 80478, 92313, 107406, 116246, 120717, 127818, 174369, 184626, 241434, 276939, 348738, 362151, 523107, 553878, 724302, 830817, 1046214, 1086453, 1569321, 1661634, 2172906, 3138642, 4707963, 9415926, 14123889, 28247778]

約数ペア:

[(1, 28247778), (2, 14123889), (3, 9415926), (6, 4707963), (9, 3138642), (13, 2172906), (17, 1661634), (18, 1569321), (26, 1086453), (27, 1046214), (34, 830817), (39, 724302), (51, 553878), (54, 523107), (78, 362151), (81, 348738), (102, 276939), (117, 241434), (153, 184626), (162, 174369), (221, 127818), (234, 120717), (243, 116246), (263, 107406), (306, 92313), (351, 80478), (442, 63909), (459, 61542), (486, 58123), (526, 53703), (663, 42606), (702, 40239), (789, 35802), (918, 30771), (1053, 26826), (1326, 21303), (1377, 20514), (1578, 17901), (1989, 14202), (2106, 13413), (2367, 11934), (2754, 10257), (3159, 8942), (3419, 8262), (3978, 7101), (4131, 6838), (4471, 6318), (4734, 5967)]