28005087180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{66678779}}^1$

素因数の和:66678798

約数の個数: 48

約数和(自身を含む): 89616280320

約数和(自身を除く): 61611193140

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 66678779, 133357558, 200036337, 266715116, 333393895, 400072674, 466751453, 666787790, 800145348, 933502906, 1000181685, 1333575580, 1400254359, 1867005812, 2000363370, 2333757265, 2800508718, 4000726740, 4667514530, 5601017436, 7001271795, 9335029060, 14002543590, 28005087180]

約数ペア:

[(1, 28005087180), (2, 14002543590), (3, 9335029060), (4, 7001271795), (5, 5601017436), (6, 4667514530), (7, 4000726740), (10, 2800508718), (12, 2333757265), (14, 2000363370), (15, 1867005812), (20, 1400254359), (21, 1333575580), (28, 1000181685), (30, 933502906), (35, 800145348), (42, 666787790), (60, 466751453), (70, 400072674), (84, 333393895), (105, 266715116), (140, 200036337), (210, 133357558), (420, 66678779)]