171968020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{8837}}^1$

素因数の和:8992

約数の個数: 48

約数和(自身を含む): 415739520

約数和(自身を除く): 243771500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3892, 4865, 8837, 9730, 17674, 19460, 35348, 44185, 61859, 88370, 123718, 176740, 247436, 309295, 618590, 1228343, 1237180, 2456686, 4913372, 6141715, 8598401, 12283430, 17196802, 24566860, 34393604, 42992005, 85984010, 171968020]

約数ペア:

[(1, 171968020), (2, 85984010), (4, 42992005), (5, 34393604), (7, 24566860), (10, 17196802), (14, 12283430), (20, 8598401), (28, 6141715), (35, 4913372), (70, 2456686), (139, 1237180), (140, 1228343), (278, 618590), (556, 309295), (695, 247436), (973, 176740), (1390, 123718), (1946, 88370), (2780, 61859), (3892, 44185), (4865, 35348), (8837, 19460), (9730, 17674)]