18842395

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{73}}^1$

素因数の和:140

約数の個数: 48

約数和(自身を含む): 28419552

約数和(自身を除く): 9577157

約数列:

[1, 5, 11, 13, 19, 55, 65, 73, 95, 143, 209, 247, 361, 365, 715, 803, 949, 1045, 1235, 1387, 1805, 2717, 3971, 4015, 4693, 4745, 6935, 10439, 13585, 15257, 18031, 19855, 23465, 26353, 51623, 52195, 76285, 90155, 131765, 198341, 258115, 289883, 342589, 991705, 1449415, 1712945, 3768479, 18842395]

約数ペア:

[(1, 18842395), (5, 3768479), (11, 1712945), (13, 1449415), (19, 991705), (55, 342589), (65, 289883), (73, 258115), (95, 198341), (143, 131765), (209, 90155), (247, 76285), (361, 52195), (365, 51623), (715, 26353), (803, 23465), (949, 19855), (1045, 18031), (1235, 15257), (1387, 13585), (1805, 10439), (2717, 6935), (3971, 4745), (4015, 4693)]