28495980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:200

約数の個数: 144

約数和(自身を含む): 91990080

約数和(自身を除く): 63494100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 53, 58, 60, 87, 90, 103, 106, 116, 145, 159, 174, 180, 206, 212, 261, 265, 290, 309, 318, 348, 412, 435, 477, 515, 522, 530, 580, 618, 636, 795, 870, 927, 954, 1030, 1044, 1060, 1236, 1305, 1537, 1545, 1590, 1740, 1854, 1908, 2060, 2385, 2610, 2987, 3074, 3090, 3180, 3708, 4611, 4635, 4770, 5220, 5459, 5974, 6148, 6180, 7685, 8961, 9222, 9270, 9540, 10918, 11948, 13833, 14935, 15370, 16377, 17922, 18444, 18540, 21836, 23055, 26883, 27295, 27666, 29870, 30740, 32754, 35844, 44805, 46110, 49131, 53766, 54590, 55332, 59740, 65508, 69165, 81885, 89610, 92220, 98262, 107532, 109180, 134415, 138330, 158311, 163770, 179220, 196524, 245655, 268830, 276660, 316622, 327540, 474933, 491310, 537660, 633244, 791555, 949866, 982620, 1424799, 1583110, 1899732, 2374665, 2849598, 3166220, 4749330, 5699196, 7123995, 9498660, 14247990, 28495980]

約数ペア:

[(1, 28495980), (2, 14247990), (3, 9498660), (4, 7123995), (5, 5699196), (6, 4749330), (9, 3166220), (10, 2849598), (12, 2374665), (15, 1899732), (18, 1583110), (20, 1424799), (29, 982620), (30, 949866), (36, 791555), (45, 633244), (53, 537660), (58, 491310), (60, 474933), (87, 327540), (90, 316622), (103, 276660), (106, 268830), (116, 245655), (145, 196524), (159, 179220), (174, 163770), (180, 158311), (206, 138330), (212, 134415), (261, 109180), (265, 107532), (290, 98262), (309, 92220), (318, 89610), (348, 81885), (412, 69165), (435, 65508), (477, 59740), (515, 55332), (522, 54590), (530, 53766), (580, 49131), (618, 46110), (636, 44805), (795, 35844), (870, 32754), (927, 30740), (954, 29870), (1030, 27666), (1044, 27295), (1060, 26883), (1236, 23055), (1305, 21836), (1537, 18540), (1545, 18444), (1590, 17922), (1740, 16377), (1854, 15370), (1908, 14935), (2060, 13833), (2385, 11948), (2610, 10918), (2987, 9540), (3074, 9270), (3090, 9222), (3180, 8961), (3708, 7685), (4611, 6180), (4635, 6148), (4770, 5974), (5220, 5459)]