7728140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{55201}}^1$

素因数の和:55217

約数の個数: 24

約数和(自身を含む): 18547872

約数和(自身を除く): 10819732

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 55201, 110402, 220804, 276005, 386407, 552010, 772814, 1104020, 1545628, 1932035, 3864070, 7728140]

約数ペア:

[(1, 7728140), (2, 3864070), (4, 1932035), (5, 1545628), (7, 1104020), (10, 772814), (14, 552010), (20, 386407), (28, 276005), (35, 220804), (70, 110402), (140, 55201)]