20910540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49787}}^1$

素因数の和:49806

約数の個数: 48

約数和(自身を含む): 66915072

約数和(自身を除く): 46004532

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, 49787, 99574, 149361, 199148, 248935, 298722, 348509, 497870, 597444, 697018, 746805, 995740, 1045527, 1394036, 1493610, 1742545, 2091054, 2987220, 3485090, 4182108, 5227635, 6970180, 10455270, 20910540]

約数ペア:

[(1, 20910540), (2, 10455270), (3, 6970180), (4, 5227635), (5, 4182108), (6, 3485090), (7, 2987220), (10, 2091054), (12, 1742545), (14, 1493610), (15, 1394036), (20, 1045527), (21, 995740), (28, 746805), (30, 697018), (35, 597444), (42, 497870), (60, 348509), (70, 298722), (84, 248935), (105, 199148), (140, 149361), (210, 99574), (420, 49787)]