207856180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{2309}}^1$

素因数の和:2968

約数の個数: 48

約数和(自身を含む): 499847040

約数和(自身を除く): 291990860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 643, 1286, 2309, 2572, 3215, 4501, 4618, 6430, 9002, 9236, 11545, 12860, 16163, 18004, 22505, 23090, 32326, 45010, 46180, 64652, 80815, 90020, 161630, 323260, 1484687, 2969374, 5938748, 7423435, 10392809, 14846870, 20785618, 29693740, 41571236, 51964045, 103928090, 207856180]

約数ペア:

[(1, 207856180), (2, 103928090), (4, 51964045), (5, 41571236), (7, 29693740), (10, 20785618), (14, 14846870), (20, 10392809), (28, 7423435), (35, 5938748), (70, 2969374), (140, 1484687), (643, 323260), (1286, 161630), (2309, 90020), (2572, 80815), (3215, 64652), (4501, 46180), (4618, 45010), (6430, 32326), (9002, 23090), (9236, 22505), (11545, 18004), (12860, 16163)]