20760180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49429}}^1$

素因数の和:49448

約数の個数: 48

約数和(自身を含む): 66433920

約数和(自身を除く): 45673740

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, 49429, 98858, 148287, 197716, 247145, 296574, 346003, 494290, 593148, 692006, 741435, 988580, 1038009, 1384012, 1482870, 1730015, 2076018, 2965740, 3460030, 4152036, 5190045, 6920060, 10380090, 20760180]

約数ペア:

[(1, 20760180), (2, 10380090), (3, 6920060), (4, 5190045), (5, 4152036), (6, 3460030), (7, 2965740), (10, 2076018), (12, 1730015), (14, 1482870), (15, 1384012), (20, 1038009), (21, 988580), (28, 741435), (30, 692006), (35, 593148), (42, 494290), (60, 346003), (70, 296574), (84, 247145), (105, 197716), (140, 148287), (210, 98858), (420, 49429)]