19860540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47287}}^1$

素因数の和:47306

約数の個数: 48

約数和(自身を含む): 63555072

約数和(自身を除く): 43694532

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, 47287, 94574, 141861, 189148, 236435, 283722, 331009, 472870, 567444, 662018, 709305, 945740, 993027, 1324036, 1418610, 1655045, 1986054, 2837220, 3310090, 3972108, 4965135, 6620180, 9930270, 19860540]

約数ペア:

[(1, 19860540), (2, 9930270), (3, 6620180), (4, 4965135), (5, 3972108), (6, 3310090), (7, 2837220), (10, 1986054), (12, 1655045), (14, 1418610), (15, 1324036), (20, 993027), (21, 945740), (28, 709305), (30, 662018), (35, 567444), (42, 472870), (60, 331009), (70, 283722), (84, 236435), (105, 189148), (140, 141861), (210, 94574), (420, 47287)]